求教sec 11-1，谢了各位了

2.     oor management, outdated technology, competition from overseas, and steel’s replacement to materials like aluminum and fiber-reinforced plastics have all been cited as causes for the decline of the United States steel industry.

(A) steel’s replacement to materials like

(B) the replacement of steel by such materials as

(C) the replacing of steel with materials of

(D) the replacing of steel by means of materials like（B）

(E) to replace steel by materials such as

A，我是没想明白，按照大全注释，“平行角度只有B的replacement最合适”，A也有replacement

同时，我想根据前面句子　Poor－－，outdated-- ,都是形容词性啊，A中的steel's 有点符合？

they are parallel because management and  technology are  noun phrases, so replacement is needed and "the ... of ..."is better.

谢谢楼上两位，我有点明白了！

同时，也想到ETS，在两个名词并列使用时，优先　n1 of n2结构。

而且好象在OG中解释中，看到过 “the ”用在一个短语前，是为了表明后面所接的是名词！