This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
The study of the distribution and determinants of health
and related states and event a specified population and
the application of this study to the control of health problem is called 
Select and explain. 
A. Entomology, B. Ecology, C. Epidemiology, D. Anthropology
C: Epidemiology
Answer: C: Epidemiology 
Explanation: None