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': 'An AIDS patient having a CD4 count of 100/microL having persistent fever and weight loss associated with invasive pulmonary disease due to M.avium, appropriate management \nSelect and explain. \nA. Select an antibiotic regimen based on drug susceptibility of the cultured organism, B. Start treatment with isoniazid and rifampin, C. Treat the patient with clarithromycin, ethambutol and rifabutin, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Mycobacterium avium complex infection is treated with a combination of rifabutin, ethambutol and clarithromycin.', 'role': 'assistant'}]