Prep 2 #54 求教

54.      the answer is C. why A is not correct? thank you!!!!!!!!!!!!!!!!!!!

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

从意思上来判断，实际上它要表达的是Greatly influenced by the Protestant missionary Samuel Kirkland，the Oneida sided with the colonists during the American Revolution

不能是Greatly influenced by the Protestant missionary Samuel Kirkland, the Oneida was the only one of the five-nation Iroquois League

他是成员之一不是他要表达的主要含义也不是受。。。影响之后就是什么成员了，你觉得呢？这个应该写成定于修饰the oneida的

此外a中的who就近修饰one，更觉得别扭了，the onieda was one...who...理论上讲应该不引起歧义，但是觉得好象还是有点会产生歧义的呢。