The answer is A, hope this helps
D. The percentage of muscle and body fat is often defined as the mass of the body which is why this is taken into account when measuring the BMI for children and teens. It might not use all of the fat, but some parts of it is needed to measure the mass effectively.
External or internal and an example is how you feel about yourself I think
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.
