哪位大N帮忙分析一下此句，ＴＫＳ．

Not all employment selection mechanisms that have a “disparate effect,” that is, that screens out a percentage of minorities or women disproportionate to their presence in the relevant labor market, are unlawful.

(A) that is, that screens out a percentage of minorities or women disproportionate to

(B) which means, that screens out a percentage of minorities or women disproportionate with

(C) which means, that screen out a percentage of minorities or women disproportionate with

(D) that is, that screen out a percentage of minorities or women disproportionate to

(E) that is, that screens out a percentage of minorities or women disproportionate with

The answer is D.　不明白ｔｏ从何而来。

怎么没人理，是不是太弱了．真的分析不透句子结构啊．