GWD-12-Q28 关于like的疑问

Some scientists contend that many species of dinosaur had a metabolism more like a warm-blooded mammal’s than a cold-blooded reptile’s.
A. that many species of dinosaur had a metabolism more like
B. that the metabolism of many dinosaur species were more like
C. that the metabolisms of many species of dinosaurs were more like those of
D. there were many species of dinosaurs that had metabolisms more like those of (A)
E. there were many dinosaur species that had a metabolism more like that of

查过讨论帖, 把此题的考点整理了一下, 但还是有一疑问, 望大牛解答~~

考点:
1. like.
我的问题: be like和like有无区别?

2.所有格不能重复
即those of a warm-blooded mammal’s错误, 所以CDE排除

3.单复数.
B选项从句主语是metabolism为单数, 所以were错误, 应该是was

4. species of dinosaur与dinosaur species. (增补)
我在看Manhattan的时候发现:
Manhattan里说, “如果是表达度量(如时间,数量,重量,人口等), 则要保持of介词短语,不要改成名词修饰语,或用's所有格”, 因为species是”类/种”, 所以用species of dinosaur优于dinosaur species, 再一次证明A优于B

like词性很多, 此题中like又出现了不同的用法 (A和B就是不同的), 还请大牛指教!!~