Answer:a
Explanation:It sound more productive and b make more sense
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:
D.
Explanation:
this is confusing but yes the answer is D. because no oxygen to the brain after 2 mins will have some damage but at 10 min you will have very bad brain damage
I think they can if they have authorization to do so
