关于ONE

215. Ralph Eilison and Amiri Baraka both argued that music was perhaps the ultimate expression of Afro-American culture, that it was the one vector of African culture that there was no possibility to eradicate.

(A) that it was the one vector of African culture that there was no possibility to eradicate

(B) the one vector of African culture that could not be eradicated

(C) for it was the one vector of African culture, and that it was impossible to eradicate

(D) a vector of African culture that there was no possibility to eradicate（B）

(E) as being the one vector that could not be eradicated from African culture

今天做题真是鬼火冒。

one的用法是怎么样的哟？ 不是说不能用the one在开头的么？

后面有that定语从句限定修饰 one,所以加"the",不知对不对,呵呵.