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': 'Epiglottis is derived from \nSelect and explain. \nA. 1st arch, B. 2nd arch, C. 3rd arch, D. 4th arch', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]