🧠 GRE Exam Prep

An argument states that a new high-speed rail line is unnecessary because a recent survey showed that only 30% of current commuters would use it. What is the most significant potential weakness in this argument's use of evidence?

A The survey might not account for potential new commuters attracted by the rail line.
B The cost of the rail line is not discussed.
C The survey did not ask about environmental impacts.
D Commuters might change their minds after the rail line is built.

✓ Correct Answer: Option A

The survey only captures current commuters, potentially overlooking a significant population segment (those who would start commuting because of the rail line), thus limiting the representativeness of the evidence.

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