I would have to say b) a description or d) a statement hope that this helps if not message me
Answer:
Healthy lifestyle
Explanation: We should always adapt for a healthy lifestyle because it can make us disease free and always fit. Whereas junk food and lifestyle can be harmful for our body and can give us diseases. So, healthy adaption is better.
Answer;
-occurs when the body gets the proper amount of nutrients, and
-assists with normal development.
Explanation;
-Optimum nutrition involves eating the right amounts of nutrients on a proper schedule so as to achieve the best performance and the longest possible lifetime in good health, assuming that external negative factors such as accidents and infectious diseases can be avoided. Therefore, it occurs when the body gets the right amount of nutrients and assists with the normal development of the body.

B.Mood-altering chemicals derived from plants.
please correct my answer if its wrong
Because you could be a mere 100 lbs and still have a high body fat ratio. Transversely, you could weight 300 lbs and have a low body fat ratio.
Hope this helped :)