This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Pharmacology
[{'content': 'The combination of trimethoprima dn sulfamethoxazole is effective against which of the following oppounistic infections in the AIDS patient? \nSelect and explain. \nA. Disseminated Herpes simplex, B. Cryptococcal meningitis, C. Pneumocystis jiroveci, D. Tuberculosis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (Ref: KDT 6/e p686, 687) Cotrimoxazole is effective against Pneumocystis and toxoplasmosis.', 'role': 'assistant'}]