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': 'Minimum antenatal visit as per MCH is ? \nSelect and explain. \nA. 1, B. 2, C. 3, D. 4', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., 4", 'role': 'assistant'}]