This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': "Chemical labyrinthectomy by transtympanic route is done in Meniere's disease using which drug? \nSelect and explain. \nA. Amikacin, B. Gentamicin, C. Amoxicillin, D. Cyclosporine", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Chemical labyrinthectomy in Meniere&;s disease is done using Gentamicin locallyRef: PL Dhingra, Diseases of Ear, Nose & Throat, 7th edition, pg no. 115', 'role': 'assistant'}]