请教：OG-紫-59

Neanderthals had a vocal tract that resembled those of the apes and so were probably without lanfuage, a shortcoming that may explain why they were supplanted by our own species

A

BNeanderthals had a vocal tract resembling an ape's

CNeanderthals had a vocal tract resembling an ape's

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Neanderthals是复数 平行结构ape's不是也应该是复数么？？

umm...比较点相同就好，都是某个解剖学上的器官比较