求助：TT GWD 8-13

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.

1. Adam Smith’s two major books are to democratic capitalism what
2. Adam Smith’s two major books are to democratic capitalism like
3. Adam Smith’s two major books are to democratic capitalism just as
4. Adam Smith wrote two major books that are to democratic capitalism similar to
5. Adam Smith wrote two major books that are to democratic capitalism what

不明白中文意思？D与E的区别？

顶一下，Help!

...的人,AS写了2本书,把Marx在某书中提到的社会主义,解释为民主的资本主义.

应该是这个意思了,就是to在这里的用法比较奇怪,有谁能解释一下吗?这算是哪门子用法?