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
[{'content': 'National Cancer Awareness day is celebrated on: \nSelect and explain. \nA. 7th May, B. 31st May, C. 7th November, D. 31st November', 'role': 'user'}, {'content': 'Answer: A \nExplanation: National cancer awareness day is celebrated on 7th November on the bih day of Nobel laureate Madam Curie. Ref: Health policies and programmes in India, D.K. Taneja 11th edition page: 352', 'role': 'assistant'}]