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': 'A subcentre 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: Ans. is `c' i.e., 3000", 'role': 'assistant'}]