This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Rural & Urban Health Centres, Workers, Norms, Subject name: Social & Preventive Medicine
[{'content': 'Type B Sub-centre is characterized by:- \nSelect and explain. \nA. Presence of Medical officer, B. Delivery facilities available, C. Immunization services available, D. Family planning services available', 'role': 'user'}, {'content': 'Answer: B \nExplanation: SUBCENTERS TYPE-A TYPE-B Delivery facility Absent Present Health worker 1 1 Health worker /ANM 1 2 Safai karamchari 1 1 Total 3 workers 4', 'role': 'assistant'}]