1.explain in detail malnutrition
2.why do teenagers require more energy than the adults?
3.what is a balance diet?

Teenagers require more energy because they are still growing, using up more energy and nutrients than adults would depending on factors like how active they are.

A balanced diet is a diet that contains the proper proportions of carbohydrates, lipids/fats, proteins, vitamins, minerals, and water necessary to maintain good health.

The answer is Choice B