D. 10-12 depending on where you are because if you are in a desert its hotter and how hyderated you are
The answer to this question is <span>variable-ratio schedule
</span><span>variable-ratio schedule refers to a schedule of reinforcement in which the response is being reinforced. after an unperdictable amount of response is being made.
The purpose of this type of scheduling is to create a high rate of responses.
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Self-depiction is a very important factor of confidence, happiness, and attitude.
Remaining physically fit will make the person more "attractive" and likable by opposite genders.
Physical activity is necessary towards happiness, confidence, and just health.
Allergies, so they don't ingest something they are allergic to.