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': 'Irreversible hearing loss caused by ? \nSelect and explain. \nA. Gentamycin, B. Clarithromycin, C. Both of the above, D. None of the above', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., GentamycinGentamycin is the most commonly used of the aminoglycosides. It produces vestibular toxicity and irreversible hearing loss.Clarithromycin is known to produce reversible hearing loss.", 'role': 'assistant'}]