白勇《语法全解》197页25题

25. Two new studies indicate that many people become obese more due to the fact that their bodies burn calories too slowly than evereating.

(A) due to the fact that their bodies burn calories too slowly than overeating

(B) due to their bodies burning calories too slowly than to eating too much

(C) because their bodies burn calories too slowly than that they are overeaters

(D) because their bodies burn calories too slowly than because they eat too much

(E) because of their bodies burning calories too slowly than because of their eating to much

这里D和E哪个对？为什么？请nn指教～～～3x

D对, 很好的平行对称. E中的BECAUSE OF 后面不能加句子, 而且THEIR EATING错!