The journalist's investigation served to _______ the company's claims of environmental responsibility, revealing a pattern of violations that directly contradicted its public statements.
Which choice completes the text with the most logical and precise word or phrase?
support
undermine
repeat
praise
Correct Answer: B
Choice B is the best answer. The passage describes revelation of violations that "directly contradicted" public statements. "Undermine" means to weaken, fitting this discrediting of claims.
Choice A is incorrect because "support" contradicts revealing contradictions. Choice C is incorrect because "repeat" doesn't convey challenging claims. Choice D is incorrect because "praise" contradicts exposing violations.