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: Social & Preventive Medicine
Which one of the following branches of Sociology studies the relationship between organism and environment- 
Select and explain. 
A. Ergonomics, B. Social physiology, C. Ecology, D. Social pathology
C: Ecology
Answer: C: Ecology 
Explanation: Ans. is 'c' i.e., Ecology Ecology is defined as the science of mutual relationship between living organisms and their environments.