<span>It takes around weeks to combined heat exposure and exercise for your body to adapt to the heat. Basically it will take 7-10 days based on the given choices. The minimum number of days which is the very minimum is 5 days. </span>
The answer is B, because the other ones either have nothing to do with fitness or are not benefits.
Explanation:
Before getting sick people often do not expect that they will catch some disease or infection. After they do, they have to take one or several doses of a vaccine and it is depending on the disease that they are having.
They will recover after the vaccine but they will also develop natural immunity in them which means that in that case, they will catcht the same or similar disease so easily again.
