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': 'First branch of the facial nerve is \nSelect and explain. \nA. Greater petrosal nerve, B. Lesser petrosal nerve, C. Chorda-tympanic nerve, D. Nerve to the stapedius', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Greater petrosal nerve arises from geniculate ganglion Ref: Dhingra 6th edition pg. 90', 'role': 'assistant'}]