There is a lot of evidence to suggest that a short nap in the afternoon ______ you refreshed for the next four or five hours．

1. A.
   will help
2. B.
   should leave
3. C.
   will leave
4. D.
   should remain

There is a lot of evidence to suggest that a short nap in the afternoon ____ you refreshed for the next four or five hours.

A. will help B. should leave C. will leave D. should remain