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': 'Drug of choice to treat severe fungal infection in \nAIDS is \nSelect and explain. \nA. Acyclovir, B. Ketoconazole, C. Aerosolized pentamidine, D. Didanosine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]