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': 'Number of postnatal visits by female health worker in her area should be atleast: March 2012 \nSelect and explain. \nA. 1, B. 2, C. 3, D. 4', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans: B i.e. 2 Health worker female (under the Multipurpose Worker Scheme), should make at least 2 post natal visits for each delivery happened in her areas.', 'role': 'assistant'}]