Correct option is D
Correct answer: (d)
Explanation: A Community Health Centre (CHC) in India is a higher-level healthcare facility meant to provide specialist services to a defined population. According to national health guidelines, each CHC is designed to serve a large catchment area, typically 1,20,000 people in plain regions where population density is higher and access is easier. In contrast, CHCs in hilly, tribal, or difficult-to-access areas are planned for a smaller population—around 80,000 people—because geographical barriers make healthcare access more challenging. Therefore, the usual population coverage of a CHC falls within the range of 80,000 to 1,20,000.