Critical Reasoning

Tsumi bats are a rare breed of omnivorous bat found only in highly temperate climates. Most Tsumi bats living in captivity develop endocrine imbalances from their normal zoo diets, which consist mostly of fruits and berries. The healthiest way to feed the bats, therefore, is to provide them primarily with nuts, grubs, and vegetables and only minimal amounts of fruits and berries.
Which of the statements below does NOT reflect an assumption upon which the argument depends?
(A) Those who care for Tsumi bats in captivity should avoid feeding them diets that produce endocrine imbalances.
(B) Tsumi bats living in captivity will not be malnourished on diets that contain minimal fruits and berries.
(C) Tsumi bats living in captivity will consume diets that consist of nuts, grubs, and vegetables but no fruits or berries.
(D) Tsumi bats living in captivity will be adequately nourished on a diet that consists primarily of nuts, grubs, and vegetables.
(E) For Tsumi bats living in captivity, no health problem stemming from diets consisting mostly of nuts, grubs, and vegetables would surpass in severity the health problems associated with endocrine imbalances

OA C