D. Regular Exercise has been shown to reduce the physical effects of stress.
A wouldn't be correct because at home, you can find plenty of time to relax.
B would be wrong because it is opinion based and would be extremely difficult, if not impossible to experiment for.
And C would be wrong because mental discipline doesn't necessarily means you can take away stress.
Hope this helps!
~GeeksandNerds
you can freeze dry it. You can put the food in an air tight bag.
Fats I am pretty sure. Sorry if I am incorrect.
Muscle fatigue due to overwork or in some cases under work
