This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Health care of community & international health, Subject name: Social & Preventive Medicine
[{'content': 'Under the Primary health care, which of the following staff is present at the subcentre level- \nSelect and explain. \nA. Block extension educator, B. Health guides, C. Multipurpose health worker, D. Medical officer', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Under the multi purpose worker scheme,one health worker female and one health worker male are posted at each sub-center and are expected to cover a population of 5000 (3000 in tribal and hilly areas). However ,health worker female limits her activities among 350-500 families (refer pgno:908 park 23rd edition)', 'role': 'assistant'}]