XY GWD 11 - 39 求助

Plants are more efficient at acquiring carbon than are fungi, in the form of carbon dioxide, and converting it to energy-rich sugars.

1. Plants are more efficient at acquiring carbon than are fungi

2. Plants are more efficient at acquiring carbon than are fungi

3. Plants are more efficient than fungi at acquiring carbon

4. Plants, more efficient than fungi at acquiring carbon

5. Plants acquire carbon more efficiently than fungi

答案是C， 我选E。

请大家帮忙解释一下，谢谢！

E的fungi后面应该补出助动词do吧，另外C中in the form of carbon dioxide紧跟carbon，那个段与正好就是修饰它的，所以更好

请指教

后面不是有and converting it to energy-rich sugars么，

C中的at acquiring carbon和以上对称，

at doing... ,and doing 的对称