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': 'Case finding tool which has been stopped as a general measure of case finding in Tuberculosis is: \nSelect and explain. \nA. Sputum microscopy, B. Sputum culture, C. Mass Miniature radiography, D. Tuberculin Testing', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Mass Miniature radiography', 'role': 'assistant'}]