Question # 45

City planner: “After a new subway line opened, downtown pollution levels decreased. Therefore, the subway line reduced pollution.” Which assumption is most necessary?

Options:

A.

No other major environmental regulations were enacted at the same time.

B.

People living downtown prefer public transit to walking.

C.

Pollution levels fluctuate naturally across seasons.

D.

Subway construction did not create additional pollution.

Viewing question 45 out of 72 questions
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