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': 'Not a hepatotoxic drug - \nSelect and explain. \nA. Allopurinol, B. Streptomycin, C. Sulfonamide, D. None', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Streptomycin o Streptomycin and ethambutol are first line antitubercular drugs without hepatotoxicity.", 'role': 'assistant'}]