Answer:
A).The formation of keratin..
the answer is C.rapid muscle building because its actually the opposite muscle loss and muscle weakness is a symptom of anorexia nervosa but C says rapid and building which is incorrect.
There are many websites you can visit however, the following link is a good one. https://www.cancer.gov/about-cancer/understanding/what-is-cancer
The thing that differentiates baseline activities from health-enhancing activities would be that during health-enhancing activities one usually does something which increases the frequency of heart beats much more, compared to a baseline activity.
