Regina has a very busy schedule and can only exercise every now and then. How do the benefits of occasional exercise compare with the benefits of regular exercise?
A.
Any exercise is good, so it does not matter how frequently she fits it in.
B.
If the occasional exercise is very intense, the benefits are the same.
C.
It is hard to say without knowing what kind of exercise Regina is doing.
D.
Regular exercise will provide more consistent benefits than occasional exercise.