Answer:
Homeostasis.
Explanation:
Homeostasis refers to any self-regulating process that living things use to actively maintain stability while adjusting to conditions (maintaining steady levels of temperature and other vital conditions such as the water, salt, sugar, protein, fat, calcium and oxygen contents of the blood) that are optimal for survival. We live a healthy life while homeostasis is successful, we get sick and it may lead to death when it is not successful. The term homeostasis was first used in 1930 by Dr. Walter Cannon.
HAVE SEX WITH THE CHEAPEST SAFTEY PROCAUTIONS.<span />
Some uncontrollable risk factors for disease is genetics and exposure.
I would say b., mostly because it is good to have them know why they need to act in such a manner not just the "style" of which the behavior is being done. Sometimes it is difficult for them to refine their behaviors, but it can produce progress
This could be a sign that the person has bulimia