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Rahul exercises regularly by visiting a ...

Rahul exercises regularly by visiting a gymnasium. Of late he is gaining weight. What could be the reason? Choose the correct answer and elaborate.

A

Rahul has gained weight due to accumulation of fats in body.

B

Rahul has gained weight due to increased muscle and less 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.

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