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: ENT
[{'content': 'NOT Ototoxic: \nSelect and explain. \nA. Streptomycin, B. Isotretinoin, C. Vincristin, D. Gentamycin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]