Environmentalists who seek stricter governmental regulations controlling water pollution should be certain to have their facts straight. For if it turns out, for example, that water pollution is a lesser threat than they proclaimed, then there will be a to them even when dire threats exist.
What this question is testing
Your task
Break the argument into its conclusion and evidence, then do exactly what the question stem asks with that structure.
Common trap
Answers that sound relevant to the topic but don't connect to the argument's actual reasoning.
Winning move
Predict what a right answer must do, then test each choice against the conclusion-evidence gap.
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