Empowergmat Official Explanation:
Here we need to look at the clarity of the sentence and verb forms. The GMAT always prefers the clearest and most concise options that make the best sense. In this case, that means looking at the beginning of the sentence and determining the correct form of the verb “found.” Differences within the text are highlighted.
(A)
the body fat of pregnant rats who ate junk food and their pups
have found that the propensity for making poor post-weaning food choices develops
This is
correct. It is clear that scientists are studying rats who ate junk food, not eating junk food themselves, and uses the correct verb form “have found.”
(B)
the body fat of pregnant rats who ate junk food
and found the propensity to make poor post-weaning food choices to develop
This is
incorrect. Using “and found” makes the intended meaning of the sentence unclear. Using the conjunction “and” makes it seem like rats ate junk food AND found a propensity for poor food choices.
(C)
the body fat of pregnant rats eating junk food
and found that the propensity for making poor post-weaning food choices develops
This is
incorrect. Using “and found” makes the intended meaning of the sentence unclear. Using the conjunction “and” makes it seem like rats ate junk food AND found a propensity for poor food choices.
(D)
pregnant rats' body fat while eating junk food have found the propensity to make poor post-weaning food choices to develop
This is
incorrect. It is not clear who is eating the junk food here. It could either be the pregnant rats or the scientists could be eating the junk food while examining the rats.
(E)
pregnant rats' body fat while eating junk food have found the propensity for making poor post-weaning food choices develops
This is
incorrect. It is not clear who is eating the junk food here. It could either be the pregnant rats or the scientists could be eating the junk food while examining the rats.