The beautiful cello solo at the end of the symphony may have salvaged the performance, for most of the orchestra members played poorly throughout the two hour concert.

A) for most of the orchestra members performed poorly throughout the two hour concert.

B) in that most of the orchestra members performed throughout the two hour concert in a poor manner.

C) When most of the orchestra members performed poorly throughout the two hour concert.

D) despite most of the orchestra members performing poorly throughout the two hour concert.

E) even though most of the orchestra members made a poor performance throughout the two hour concert.

The OA is A.

What is wrong with option C?