This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Allied Health Sciences, Subject name: Social & Preventive Medicine
[{'content': 'A Sub-centre in a hilly area caters to a population of \nSelect and explain. \nA. 1000, B. 2000, C. 3000, D. 5000', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Population norms for health centres in india: Primary health care system ICDS system Centre Sub- centre PHC CHC Anganwadi Level of care Primary Primary Secondary - Population norm Plains Hilly/tribal areas 5000 3000 30,000 20,000 1,20,000 80,000 400-800 300-800', 'role': 'assistant'}]