Answer:
Epidemiology is the branch of medicine which deals with the incidence, distribution, and possible control of diseases and other factors relating to health.
Explanation:
I hope this helps
You didn't provide a graph? Generally, when we're talking about homeostatis, we're talking about the neutral state of the body during which it can function optimally. If you've provided a graph which involves the human body under an intense workload, then we can be sure that during this period the body isn't under homeostasis.
The answer is C. Hopes this helps you out. :)