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': 'Primary prevention- \nSelect and explain. \nA. Marriage counseling, B. Early diagnosis and treatment, C. Pap smear, D. Self breast examination', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Marriage counseling", 'role': 'assistant'}]