Answer:
facial feedback hypothesis
Explanation:
Facial feedback hypothesis: The facial feedback hypothesis started with the work of William James in the 1840s. The phenomenon describes that an individual's facial movement can influence and trigger emotional experience.
Example: If a person is forced to attend a party that he or she doesn't want to attend will eventually start to like and enjoy the party.
The question above can be best described by the facial feedback hypothesis.
I'm pretty sure the answer is D. bile.
Exercise in well know places
Always have your phone with you
And carry water to avoid dehydration
The fourth category of warnings signs would be physical change to the body.