Which sentence is written correctly?

A.
  Nobody was as sick as Eleanor was.
 

B.
  Wendy swims faster than any other girl on the team.
 

C.
  Madira painted more pictures for the art show than anyone did.
 

D.
  The band's drum major practiced the march longer than any band member.

E. I know nothing.

It depends upon who wrote the question. If a person wrote the question, it is probably B or C. If it is a computer generated question, than it could be A, B, C, or D.