Civic Leader: The high cancer rate among our citizens is the result of hazardous material produced at your plant.
Board of Directors: Our statistics show that rates of cancer are high throughout the valley in which the plant is situated because local wells that supply drinking water are polluted, not because of the plant.
Which of the following, if true, most seriously weakens the board’s claims?

Question

Examsnet · Accepted Answer

Correct Answer is :  Cancer-causing chemicals used at the plant are discharged into a nearby river and find their way into local wells.

GMAT Verbal Reasoning Practice Test 2