This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: RNTCP, Subject name: Social & Preventive Medicine
[{'content': 'Every TB sputum positive patient can infect up to:- \nSelect and explain. \nA. 1-2 persons per year, B. 5-6 persons per year, C. 10-15 persons per year, D. 100-200 persons per year', 'role': 'user'}, {'content': 'Answer: C \nExplanation: TB transmission: - Slow rise, then plateau phase, then slow fall is characteristic in India - propagative epidemic person - to person transmission. - Thus, Every TB sputum positive patient can infect up to 10-15 persons per year.', 'role': 'assistant'}]