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': "Meniere's disease is characterized by - \nSelect and explain. \nA. Conductive hearing loss and tinnitus, B. Vertigo, ear discharge, tinnitus and headache, C. Vertigo, tinnitus, hearing loss and headache, D. Vertigo, tinnitus and hearing loss", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]