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': 'All of the following are drugs for ATT except ? \nSelect and explain. \nA. Kanamycin, B. Cycloserine, C. 5-flucytosine, D. Ofloxacin', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., 5-flucytosine Antitubercular drugs o First line --> Isoniazid, rifampin, ethambutol, streptomycin, pyrazinamide. o Second line --> Thiacetazone, PAS, ethionamide, cycloserine, kanamycin, amikacin, capreomycin, ciprofloxacin, ofloxacin, clarithromycin, Azithromycin, rifabutin.", 'role': 'assistant'}]