This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Social science, Mental health & Genetics, Subject name: Social & Preventive Medicine
The Behavioural Science used extensively in PSM is - 
Select and explain. 
A. Anthropology, B. Economics, C. Politics, D. Law
A: Anthropology
Answer: A: Anthropology 
Explanation: the term behavioural science is applied to social anthropology, sociology , social psychology because they deal directly with human behaviour ref ;(page no;726) 25th edition of PARK's textbook of Preventive and Social medicine