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.
<span>Which is the MOST common nutrient deficiency in the world?
<span>-iron</span></span>
I believe the correct answer is B. Spread by contact.
I think A dont count me on that
Distress is a form of Negative stress
