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
Tetracycline is the drug of choice for all except? 
Select and explain. 
A. LGV, B. Cholerra, C. Plague prophylaxis, D. Pneumocystis carinii
D: Pneumocystis carinii
Answer: D: Pneumocystis carinii 
Explanation: Ans. is 'd' i.e., Pneumocystis carinii