OG11请大家帮我分析下

41. Under a provision of the Constitution that was never applied. Congress has been required to call a conven­tion for considering possible amendments to the document when formally asked to do it by the legisla­tures of two-thirds of the states.

(A)             was never applied, Congress has been required to call a convention for considering possible amendments to the document when formally asked to do it

(B)              was never applied, there has been a requirement that Congress call a convention for consider­ation of possible amendments to the document when asked to do it formally

(C)             was never applied, whereby Congress is required to call a convention for considering possible amendments to the document when asked to do it formally

(D)             has never been applied, whereby Congress is required to call a convention to consider possible amendments to the document when formally asked to do so

(E)              has never been applied. Congress is required to call a convention to consider possible amend­ments to the document when formally asked to do so

 答案是E没有错,但不清楚Under a provision of the Constitution that 
      has never been applied. 这个是什么结构阿,修饰CONGRESS吗, 为什么这种结构可以单独一个句子,请教了.

under a provision ... 是做状语，所以连词whereby就不需要了。

that has never been applied 是定语从句，修饰provision。

个人看法！

Under a provision of the Constitution that was never applied.

大虾们 他问的是 这个最后是个句号不是 逗号 你们说是状语重句,但是它是一个独立的句子 而不是句子中的状语.

我也不明白 为什么是这样的.