no hablar inglés yo gracias
Answer:
The answer is D. after a while you will begin to gain muscle mass, which means more weight and it also means you need to eat more. this will add more weight to your body making each exercise the same difficulty at a certain point, the ease of exercise will only get better during the first sessions, after that, you will always equal out because of the mass being added.
Pituitary gland. I believe thats the name of the organ.
