请问一道语法题

 GWD-7,Q29

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

请问大家,为啥选E啊?

谢谢

顶~

我也想知道为什么D不可以？

http://forum.chasedream.com/dispbbs.asp?boardid=23&id=63014&star=1#63014