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

A. Plants are more efficient at acquiring carbon than are fungi
B. Plants are more efficient at acquiring carbon than fungi
C. Plants are more efficient than fungi at acquiring carbon
D. Plants, more efficient than fungi at acquiring carbon
E. Plants acquire carbon more efficiently than fungi

OE C

Why not B?????

B is incorrect for the follwing reason.
Plants are more efficient at acquiring carbon than fungi

1. This could mean plant can acquire carbon, and plant can acquire fungi. Out of the two things it can acquire, it acquires carbon more efficiently.
2. This could mean carbon can be acquired by fungi and plants. Of the 2 species that can acquire carbon, plants do a better job.

Because we can have confusion as to which meaning is right, this choice is wrong.