Answer:
A
Explanation:
This seems like the best answer. Let me break it down for you:
Stamina is the ability to sustain prolonged physical or mental effort.
Regularity and Specificity just refer to how much you do and what you do.
Overload and Progression refers to if your doing too much and at what rate.
It's an act of controlling or portioning in regards to food. Regulating "big foods" or unhealthy foods who be controlling how much you each of these foods.