Answer:
The correct answer would be B, Regular participation in sports helps preserve muscle mass.
Step-by-step explanation:
When a person is engaged in a physical activity, he either lose weight or lose body fat. Body fat is reduced by doing a regular physical exercise. But muscle mass is gained if high intensity exercises are done while losing body fats. These body fats would be converted to muscle mass. Your weight may not go down, but your body inches definitely go down. Toning of muscles is very important in gaining a fit body shape, and regular participation in sports helps a person to preserve his muscle mass, tone the muscles and make the person look thin and fit.