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
Case-control study is a type of - 
Select and explain. 
A. Descriptive epidemiological study, B. Analytical study, C. Longitudinal study, D. Experimental epidemiological study
B: Analytical study
Answer: B: Analytical study 
Explanation: Ans. is 'b' i.e., Analytical study