A, because if you know about hygiene, you can help prevent the flu. Ex: educating younger kids to always wash your hands after touching anything dirty, after using the restroom, and before eating.
Answer: HPE is a multidisciplinary subject because all the contents related to humans, human health and sound environment come under this subject.
Explanation: In education or academia health, population and environment have different origins but when combined together make a multidisciplinary subject.
The answer for this question is physical fitness