This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Health Schemes, Subject name: Social & Preventive Medicine
[{'content': 'Anti tobacco day is:- \nSelect and explain. \nA. 1-Jul, B. 24-Mar, C. 31-May, D. 1-Dec', 'role': 'user'}, {'content': "Answer: C \nExplanation: 31 may: Anti-tobacco day 1 july: doctor's day 24 march: anti TB day 1 december: World AIDS day", 'role': 'assistant'}]