Two groups of laboratory mice were injected with cancerous cells. One group’s cages were rotated in a disorienting manner. Two-thirds of these mice developed cancers. One-tenth of the mice in stationary cages developed cancers. The researchers concluded that stress enhances the development of cancer in laboratory mice.
The researchers’ conclusion logically depends on which of the following assumptions?

Question

Examsnet · Accepted Answer

Correct Answer is :  Rotating the cages in disorienting manner produced stress in the mice in those cages.

GMAT Verbal Reasoning Practice Test 3