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: Anatomy
[{'content': 'Pinna is supplied by: \nSelect and explain. \nA. Vagus nerve, B. Auriculotemporal nerve, C. Grater auricular nerve, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A i.e. Vagus nerve; B i.e. Auriculotemporal nerve; C i.e. Great auricular nerve', 'role': 'assistant'}]