I would say it would be D or A. Im not quite sure, but you can workout hard without getting injured so my best bet would be D.
A will be the answer because usually marking your exercise days will become a habit because lets say you would do a running exercise but you want to do it in a certain day well if you mark it on the calendar, it'll become a habit.
Answer:
to understand how negative side effects
might make a person feel
to understand how a new drug might affect
the body
Answer:
3-4 times a week for an hour
Explanation:
