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 microscopy for TB diagnosis has \nSelect and explain. \nA. High sensitivity and low specificity, B. Low sensitivity and Low specificity, C. Low sensitivity and High specificity, D. High sensitivity and High specificity', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]