1.        Unlike that of human beings, who waste away when they go without food for long periods, hibernating bears exist for months on only their excess fat.

(A) Unlike that of human beings, who waste away when they go

(B) Unlike human beings, who waste away when they go

(C) Unlike human beings, wasting away when going

(D) Dissimilar to human beings, wasting away when（B）

(E) Lacking similarity to human beings, who waste away when

请问C哪里不对？

非谓语动词在句中，逻辑主语为它前面的名词，所以这里主语就是human beings

会不会是when后going不对呢？