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': 'SET centres are established if prevalence % leprosy is – \nSelect and explain. \nA. 0.5–1/ 1000, B. 1–5, C. 5–10, D. 10', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Survey Education and Treatment (SET) Centre → \xa0Was advised where prevalence was 1-5 per 1000.\n\nA SET Centre is attached with: PHC in rural area\nAdministrative control: Medical Officer (PHC)\nPopulation catered: 20,000 — 25,000\nStaff One paramedical worker\nFunctions:\n\n\nDetection of cases early by house-to-house survey\nHealth education about leprosy\nFree treatment of all cases and follow-up\nContact tracing and their chemoprophylaxis with Dapsone', 'role': 'assistant'}]