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': 'For a population of ______ in plains, A female health worker is alloted \nSelect and explain. \nA. 1000, B. 2000, C. 5000, D. 7000', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Female health worker is alloted at subcenter level.\nSubcenter in plains is for 5000 population.\nSubcenter in hilly/tribal areas is for 3000 population.', 'role': 'assistant'}]