PT 59 S2 Q14

At one sitting, a typical doughnut eater consumes4 doughnuts containing ... ...

The argument depends on assuming which one of the following?
(A) The calories and fat in bagels have the same health impact on bagel eaters as the calories and fat in doughnuts have on doughnut eaters.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Complete Section: LR-A, Dec. '09 LSAT (PT 59 Sec. 2)