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
Study time, place, and person of a disease is__________study - 
Select and explain. 
A. Descriptive, B. Analytic, C. Association, D. Comparison
A: Descriptive
Answer: A: Descriptive 
Explanation: Ans. is 'a' i.e., Descriptive