请教大全SECTION B 第1题

shuchang

1.     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（D）

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

答案是D，谁能帮我分析一下句子的结构？第一个和第二个THAT各指什么，为什么不用WHICH。多谢！

lift1217

Not all employment selection mechanisms are unlawful是主句，that have a “disparate effect是定语从句，that is是插入语， that screens out a percentage of minorities or women disproportionate to their presence in the relevant labor market是employment selection mechanisms 的同位语，这样分对吗