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': 'Sputum positivity in T. B. is - \nSelect and explain. \nA. More sensitive than specific, B. More specific than sensitive, C. More sensitive as well as specific, D. Non sensitive or specific', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]