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
AIDS day is ? 
Select and explain. 
A. 7 April, B. 3-May, C. 5-Jun, D. 1-Dec
D: 1-Dec
Answer: D: 1-Dec 
Explanation: Ans. is 'd' i.e., 1 December