I believe the answer is C?
A. A person is obese if he or she has an excess amount of body fat.
The reason for A and not B is because someone with a lot of muscles could weigh more based on their BMI, which doesn't differentiate between the weight from muscles vs. fat
The overload principle
Explanation:
The overload principle is the most basic of all physical activity principles. It says that doing "more than normal" is necessary if benefits are to occur.
