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': 'In facial nerve injury, loss of lacrimation is due to involvement of \nSelect and explain. \nA. Chorda tympani nerve, B. Buccal nerve, C. Greater superficial petrosal nerve, D. Deep petrosal nerve', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Secretomotor fibres to lacrimal gland leave at geniculate ganglion greater superficial petrosal nerve Ref: Dhingra 6th edition Pg. 97', 'role': 'assistant'}]