detailed solution

Correct option is A

The given statement is true.

According to the World Health Organisation (WHO), health is defined as "a state of physical, mental, and social well-being and not just absence of an infirmity or disease.”

A good lifestyle should include a balanced diet, personal hygiene, and regular exercise. These factors are very important to maintain good health. An individual’s mental and physical condition is greatly influenced by the environment in which he lives. Thus, social hygiene also affects one well being.