Rahul exercises regularly by visiting a gymnasium . Of late he is gaining weight . What could be the reason ? Choose the correct answer and elsborate .
(a) Rahul has gained weight due to accumulation of fats in body.
(b) Rahul has gained weight due to increased muscle and loss of fat.
(c ) Rahul has gained weight because his muscle shape has improved.
(d) Rahul has gained weight because he is accumulating water in the body.

Explanation

Increase in the weight of Rahul is improved of muscle shape, regular exercise increase muscles of the body, increase length of muscles sarcoplasm and amount of mitochondria increase and strenth gained increase volume and size of muscles fait is reduced.