Answer:
d.
People who are depressed may sometimes feel depressed for no apparent reason
Reps equal times you lift a certain amount ( ex: 25 pounds arm or leg lifts and repeating same movement # of times ( say 30x) would be Reps. Better to lift less weight and do more Reps.
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!