Which term is used to describe how often a person exercises?
frequency
individualization
time
intensity

Frequency is term which best describes how often a person exercises. This is an important principle in exercise which can contribute to a person's total physical changes and improvements. Frequency is part of the F.I.T.T. (Frequency, Intensity, Type, & Time) principles of exercise which addresses the proper structure of an exercise program.

Ibelieve the answer is d.