B problem solver this is correct answer in my opinion
Answer:
Homeostasis
Explanation:
Homeostasis is the condition of relative stability that the body needs to perform its functions properly for the body's balance. An example of homeostasis can be seen in the question above, as at the moment when osmometric cells in the brain detect an increase in plasma salt concentration, information is sent to the hypothalamus, which notifies the pituitary to release the hormone ADH. In seeking equilibrium, ADH causes the kidney to save water, which decreases the salt concentration in plasma.
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It is C because you always have a chance that you will cause an injury. No matter how fit you are you will expeirence fatigue at some point. and it is good to change ur exercise routine but dont completely quit it