大全 section e 7

The Supreme Court’s concern with legitimacy is not for the sake of the court but the nation to which it is responsible.
(A) but the nation to which it is responsible
(B) but for the sake of the nation to which it is responsible
(C) so much as the nation it is responsible to
(D) as the nation it is responsible to
(E) but the nation

很明显，B是答案，但我是否可以把A看成是一种省略形式呢？是不是为了达到平行的效果，所有对称的成分都不能省略呢？