Hunger is your body telling you that your body is hungry, appetite is you conscious telling you aren't hungry, although you probably are
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 is D. Muscles tense.
Space that's my best guess
