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: Microbiology
[{'content': 'Tuberculin test is positive if induration is ? \nSelect and explain. \nA. >2min, B. >5mm, C. >7mm, D. >10mrn', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., > 10mm TEST . Skin testing (tuberculin test) is most widely used screening test for M. tuberculosis infection. . There are three main tests currently in use :", 'role': 'assistant'}]