The answer to your question is,
People who avoid them.
-Mabel <3
Well it does not matter what time of the day it is, so it is not A. I think that that B is a possible answer but I think that it depends on the person. I think C makes the most sense so far so lets read the last one to make sure. I don't think it matters what exercise is being performed so it is not D. So after observing the question, The best answer would be C.
Hope This Helps!