This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
[{'content': 'Most appropriate test to assess the incidence of TB in the community \nSelect and explain. \nA. Identify all positives to tuberculin test, B. Sputum examination of symptomatic patients, C. Identify new conveer to tuberculin test, D. Screen all under 5 yrs with tuberculin test', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Prevalence, Case finding, Incidence', 'role': 'assistant'}]