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
The population covered by each of the following is 1000, EXCEPT: 
Select and explain. 
A. ASHA worker, B. Anganwadi worker, C. Sub centre, D. Village health guide
C: Sub centre
Answer: C: Sub centre 
Explanation: 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.