Island Museum analyzes historical artifacts using one or more techniques described below—all but one of which is performed by an...

GMAT Multi Source Reasoning : (MSR) Questions

Source: Official Guide

Multi Source Reasoning

Conditions

HARD

...

Notes

Post a Query

Techniques

Artifacts

Budget

Island Museum analyzes historical artifacts using one or more techniques described below—all but one of which is performed by an outside laboratory—to obtain specific information about an object's creation. For each type of material listed, the museum uses only the technique described:

Animal teeth or bones: The museum performs isotope ratio mass spectrometry (IRMS) in-house to determine the ratios of chemical elements present, yielding clues as to the animal's diet and the minerals in its water supply.

Metallic ores or alloys: Inductively coupled plasma mass spectrometry (ICP-MS) is used to determine the ratios of traces of metallic isotopes present, which differ according to where the sample was obtained.

Plant matter: While they are living, plants absorb carbon-14, which decays at a predictable rate after death; thus radiocarbon dating is used to estimate a plant's date of death.

Fired-clay objects: Thermoluminescence (TL) dating is used to provide an estimate of the time since clay was fired to create the object.

Ques. 1/6

Which one of the following pieces of information would, on its own, provide the strongest evidence that the given artifact was actually produced on Kaxna?

A radiocarbon date of 1050 BC for a wooden bowl

IRMS analysis of a necklace made from animal bones and teeth

A TL date for a fired-clay brick that places it definitively in the period of the Kaxna Kingdom

ICP-MS analysis of a metal tool that reveals element ratios unique to a mine on Kaxna

Determination that a stone statue was found near a quarry known to produce stone statues during the Kaxna Kingdom

Solution

OWNING THE DATASET

Understanding Source A: Text Source - Museum Analysis Techniques

Information from Dataset	Analysis
"Island Museum analyzes historical artifacts using one or more techniques described below—all but one of which is performed by an outside laboratory"	The museum uses multiple specialized techniques for artifact analysis Only one technique is done in-house, all others require external laboratories Inference: This division suggests budget and expertise considerations
"Animal teeth or bones: The museum performs isotope ratio mass spectrometry (IRMS) in-house"	IRMS is the single in-house technique Used exclusively for animal remains Inference: IRMS is the one in-house technique mentioned above
"Metallic ores or alloys: Inductively coupled plasma mass spectrometry (ICP-MS) is used to determine the ratios of traces of metallic isotopes present, which differ according to where the sample was obtained"	ICP-MS analyzes metal artifacts Can identify geographic origin based on isotope ratios Inference: ICP-MS is performed by outside lab and can identify where metals came from
"Plant matter: ...radiocarbon dating is used to estimate a plant's date of death"	Radiocarbon dating determines when plants died Applicable to plant-based materials Inference: Radiocarbon dating is performed by outside lab
"Fired-clay objects: Thermoluminescence (TL) dating is used to provide an estimate of the time since clay was fired"	TL dating determines when clay was fired/created Dates the object creation, not the clay material Inference: TL dating is performed by outside lab

Summary: Island Museum uses four specific analytical techniques matched to different material types, with only IRMS for animal remains performed in-house while metal, plant, and clay analyses require external laboratories.

Understanding Source B: Text Source - Kaxna Collection Background

Information from Dataset	Analysis
"Island Museum has acquired a collection of metal, fired clay, stone, bone, and wooden artifacts found on the Kaxna Islands, and presumed to be from the Kaxna Kingdom of 1250–850 BC"	Collection contains five material types Artifacts are presumed (not confirmed) to date from 1250-850 BC Inference: The 400-year kingdom period creates dating challenges Linkage to Source A: Four of five materials (metal, clay, bone, wood) have testing techniques; stone does not
"Researchers have mapped all the mines, quarries, and sources of clay on Kaxna"	Complete knowledge of local raw material sources exists Inference: This enables verification of local vs. imported materials Linkage to Source A: ICP-MS can compare metal artifacts to known Kaxna sources
"wooden artifacts of that time were generally created within 2 years after tree harvest"	Wood was processed quickly after harvesting Inference: Tree death date closely approximates artifact creation date Linkage to Source A: Radiocarbon dating of wood effectively dates artifact creation
"There is, however, considerable uncertainty as to whether these artifacts were actually created on Kaxna"	Key research question: local creation vs. importation Inference: Finding location doesn't confirm creation location Linkage to Source A: ICP-MS origin detection directly addresses this question for metals
"radiocarbon dating is accurate to approximately ±200 years and TL dating is accurate to approximately ±100years"	Dating techniques have significant error margins TL is more precise than radiocarbon Inference: Dating margins span significant portions of the 400-year kingdom Linkage to Source A: Both dating techniques have limitations for precise period attribution

Summary: The museum's Kaxna collection includes five material types with uncertain origins from a 400-year period, where available testing techniques can analyze most materials and potentially determine whether artifacts were locally made, though dating precision limitations pose challenges.

Understanding Source C: Text Source - Testing Budget Constraints

Information from Dataset	Analysis
"For outside laboratory tests, the museum's first-year budget for the Kaxna collection allows unlimited IRMS testing"	No budget limit for in-house IRMS testing Inference: Bone artifacts can be tested without budget constraints Linkage to Source A: Confirms IRMS as the in-house technique Linkage to Source B: All bone artifacts in collection can be tested
"a total of $7,000—equal to the cost of 4 TL tests plus 15 radiocarbon tests, or the cost of 40 ICP-MS tests—for all other tests"	$7,000 total for all external laboratory testing Can calculate costs: ICP-MS is cheapest, TL is most expensive Inference: Can test at most 40 metal artifacts OR 4 clay artifacts OR combinations Linkage to Source A: All three external techniques compete for same budget Linkage to Source B: Limited budget forces selective testing of metal, clay, and wood artifacts
"For each technique applied by an outside lab, the museum is charged a fixed price per artifact"	Pricing is per individual artifact Costs are predictable and consistent Linkage to Source B: With potentially many artifacts of each type, per-artifact pricing creates difficult choices

Summary: The museum has unlimited testing for bone artifacts through in-house IRMS but only $7,000 for all external testing, creating difficult prioritization decisions given that ICP-MS offers 40 tests while TL dating offers only 4 tests, directly impacting the ability to answer questions about the collection's origins and dates.

Overall Summary

The Island Museum faces a complex analytical challenge with its Kaxna collection
The museum has appropriate testing techniques for four of the five material types (missing only stone)
Budget constraints severely limit external testing options
Unlimited in-house IRMS for bone analysis but only $7,000 for external labs
The museum must prioritize between origin testing (40 possible ICP-MS tests for metals at full budget) and dating (only 4 TL tests for clay at full budget)
Given the primary research question about whether artifacts were created locally versus imported, and the complete mapping of Kaxna's material sources, ICP-MS testing of metals offers the best value for definitively answering origin questions
The ±100-200 year dating margins make precise period attribution challenging regardless of budget allocation

Question Analysis

Which single piece of information would best prove that an artifact was made on the Kaxna islands (not just found there or from that time period)?

Key Constraints:

on its own
strongest evidence
actually produced on Kaxna

Answer Type Needed: Comparative evaluation of evidence strength

Connecting to Our Analysis

The cross-source analysis shows that ICP-MS can determine geographic origin of metals, researchers have mapped all local sources on Kaxna, and different techniques provide different types of information (origin vs. timing).

Can answer from analysis alone: YES - The analysis clearly shows which techniques can determine geographic origin versus just timing.

Extracting Relevant Findings

Evaluating each option against what the analysis reveals about each technique's capabilities. Evidence must directly link to Kaxna production, not just timing or location of discovery.

Hypothesis: ICP-MS analysis showing unique Kaxna mine signatures would be strongest evidence.

Individual Statement Evaluations

Statement 1 Evaluation

"A radiocarbon date of 1050 BC for a wooden bowl"

A radiocarbon date tells us when the wood died (around 1050 BC).

Dating information only provides timing but not location of production
This is weak evidence as it only tells us when, not where the artifact was made

Statement 2 Evaluation

"IRMS analysis of a necklace made from animal bones and teeth"

IRMS analysis reveals the animal's diet and water minerals.

Animal habitat information indicates where animal lived, not where artifact was made
This provides moderate evidence as it suggests local animals but is not definitive proof of production location

Statement 3 Evaluation

"A TL date for a fired-clay brick that places it definitively in the period of the Kaxna Kingdom"

TL dating tells us when the clay was fired to make the brick.

Creation timing only provides when made but not where
This is weak evidence as it only provides temporal information, not geographic proof

Statement 4 Evaluation

"ICP-MS analysis of a metal tool that reveals element ratios unique to a mine on Kaxna"

Analysis states ICP-MS determines 'ratios of traces of metallic isotopes...which differ according to where the sample was obtained'
Researchers have 'mapped all the mines...on Kaxna'
This option directly links material to specific Kaxna mine - providing geographic proof of origin

Statement 5 Evaluation

"Determination that a stone statue was found near a quarry known to produce stone statues during the Kaxna Kingdom"

Where found doesn't equal where made
Analysis shows no testing technique exists for stone
This provides location of discovery, not production evidence

Systematic Checking

Checking remaining options against analysis findings:

Option 4 (ICP-MS): Analysis states ICP-MS determines 'ratios of traces of metallic isotopes...which differ according to where the sample was obtained' AND researchers have 'mapped all the mines...on Kaxna'
Option 4 directly links material to specific Kaxna mine - this is geographic proof of origin
Option 5 (stone statue): Where found doesn't equal where made, and analysis shows no testing technique exists for stone
Only Option 4 provides direct evidence of Kaxna origin through material source identification

Final Answer

ICP-MS analysis of a metal tool that reveals element ratios unique to a mine on Kaxna

Answer Choices Explained

A radiocarbon date of 1050 BC for a wooden bowl

IRMS analysis of a necklace made from animal bones and teeth

A TL date for a fired-clay brick that places it definitively in the period of the Kaxna Kingdom

ICP-MS analysis of a metal tool that reveals element ratios unique to a mine on Kaxna

Determination that a stone statue was found near a quarry known to produce stone statues during the Kaxna Kingdom

Rate this Solution

Tell us what you think about this solution

...

Forum Discussions

Start a new discussion

Post

Previous Attempts

Loading attempts...