GMAT Critical Reasoning (CR) | Re: In a survey of all 14,000 undergraduates in a University, ov

This is a paradox question and we need to avoid answer choices that supports just one side of the paradox. A does that. It only helps explain why the officials reported increase in number of cheaters reported but doesnt help explain why the survey results declined.
C does a better job explaining the paradox by saying that it was increase in the number of students but decrease in the percentage.

Experts please help.

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