898. 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
这个题目看了NN们的讨论还是迷糊，好像it/its,they/their指代不一直的题目还不止这一题。请NN给解释解释，谢谢。 | 
