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 captialism similar to
(D) Adam Smith wrote two major books that are to democratic captialism what
A leading figure應該是同位語往前提,所以(A) (B) (C)刪掉
再來就是兩個對比時 "similar to"和"what"的用法了
雖然我選了(E),但卻不是很懂,麻煩高手幫忙幫忙!!