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: Pharmacology
[{'content': 'Tetracycline is the drug of choice for all except? \nSelect and explain. \nA. LGV, B. Cholerra, C. Plague prophylaxis, D. Pneumocystis carinii', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Pneumocystis carinii", 'role': 'assistant'}]