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': 'In a hea patient, contraceptive of choice is ? \nSelect and explain. \nA. Sterilization, B. IUCD, C. OCP, D. Norplant', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Sterilization o Sterilization & double barrier methods are the contraception of choice in hea patients.", 'role': 'assistant'}]