GWD-TN-3 Q41 SC 求助

A leading figure in the Scottish enlightenment, Adam Smith’s two major books are to democratic capitalism what Marx’s Das Kapital is to socialism.

A.      Adam Smith’s two major books are to democratic capitalism what

B.      Adam Smith’s two major books are to democratic capitalism like

C.      Adam Smith’s two major books are to democratic capitalism just as

D.      Adam Smith wrote two major books that are to democratic capitalism similar to

E.       Adam Smith wrote two major books that are to democratic capitalism what
        

答案是E

我不明白what在其中充当的成分是什么..请各位CDer指点一下小女子..

what = just as，意为“恰像，犹如，好比”用作连词，引导比较状语从句。

A1 is to A2 what B1 is to B2 这可以看成个句型