补充250 186　请教

186. The utility company has announced that it will permanently close its Unit I nuclear power plant, the first plant that had been built by private industry and the model for a generation of modern nuclear reactors.

(A) that had been built by private industry and

(B) built by private industry and which was

(C) to be built by private industry and which was

(D) built by private industry and（D）

(E) to have been built by private industry and was

Ａ　不可以么？　"the  first plant" 应该发生在"announced"

之前，用过去完成时表示时间上的顺序应该没有错阿？

请指教，　谢谢！