这个答案为什么是C啊，没谓语吧

Greatly influenced by the Protestant missionary Samuel Kirkland, the Oneida was the only one of the five-nation Iroquois League who sided with the colonists during the American Revolution.

(A) was the only one of the five-nation Iroquois League who sided
(B) was alone of the five-nation Iroquois League when they sided
(C) alone among the five nations of the Iroquois League sided
(D) were the only ones out of the five nations of the Iroquois League in siding
(E) only of the five-nation Iroquois League had sided

好像 A 没有问题啊。

请问LZ以后可以贴出题目的出处吗？一是便于index,二是不少真题的答案有争议，大家可以参考前人的讨论。谢谢！

我觉得是单数吧，集合名词在表示整体概念的时候用单数，在强调个体概念的时候用复数。

og上有个因纽特人的例子，不过这里Inuits 本身就是复数，不太一样，其他暂时没想到，还请大家补充。

Inuits of the Bering Sea were in isolation from contact with Europeans longer than  wereAleuts or Inuits of the North Pacific and northern Alaska.

Inuits of the Bering Sea were in isolation from contact with Europeans longer than  wereAleuts or Inuits of the North Pacific and northern Alaska.