Answer:
a. fat to muscle fiber
Step-by-step explanation:
For the fat to disappear from our body we must perform a specific type of exercise: aerobic.
This type of exercise is ideal for burning fat and, when using a lot of oxygen, is beneficial for the cardiovascular system and for increasing lung capacity.
Having the toned muscles makes the metabolism work faster and that, even at rest, the body feeds on fat stores.
Of course, only the abdominal series are not enough to have a strong and marked belly.
On the other hand, it is also necessary to eat healthy and not add more fats to the body. It is about losing excess fat and strengthening the muscles.