The national entrance examinations are around the corner, so some fans in my class are persuaded to ________ football to concentrate on their studies．

1. A.
   quit to play
2. B.
   stop to play
3. C.
   quit playing
4. D.
   to be quitted playing

The national entrance examinations are around the corner, so some fans in my class are persuaded to ___________ football to concentrate on their studies.

A. quit to play              B. stop to play                 C. quit playing             D. to be quitted playing