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': 'The population covered by each of the following is 1000, EXCEPT: \nSelect and explain. \nA. ASHA worker, B. Anganwadi worker, C. Sub centre, D. Village health guide', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The sub centre is the peripheral outpost of rural health care system. A sub centre is established for every 5000 population in general. In cases of hilly, tribal or backward areas, a sub centre is established for every 3000 population. Ref: Park 21st edition page: 839.', 'role': 'assistant'}]