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': 'Nerve supply for external ear are all Except \nSelect and explain. \nA. Greater occipital nerve, B. Greater auricular nerve, C. Auriculotemporal nerve, D. Lesser occipital nerve', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The greater auricular nerve supplies medial surface of the pinna and posterior pa of the lateral surface. lesser occipital supply upper pa of the medial surface and auriculotemporal supplies tragus, crus of the helix and adjacent pa of the helix.Reference: Dhingra 6th edition.', 'role': 'assistant'}]