Exercise needs vary on individuals for many reasons. First of all, it could be physical problems like weight. If a person is to heavy, or to small. Then starting out exercise slow is best. Often times over exercising for obese people, or people who are to thin, can cause blackouts, a loss of water retention, and exhaustion.
Another could be health issues. People with certain health issue may find it hard to work out, and need help with finding what works best for them.
I think that the answer is A .
The answer to the first unknown is "Sensation" while in the second unknown is "Perception". These two words are very different such that the "sensation" is when the sense organ detected external physical stimuli but the "perception" is the processing, organizing and interpreting of those stimuli captured by sensation in the brain.
Answer is B a short term stresser
