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': 'Nerve supply of tympanic membrane-a) Auriculotemporalb) Auricular branch of vagusc) Occipital nerved) Great auricular nervee) Glossopharyngeal nerve \nSelect and explain. \nA. abe, B. bcd, C. cde, D. acd', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]