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: Surgery
[{'content': 'Nerve involved in Arcade of Frohse ? \nSelect and explain. \nA. Median, B. Ulnar, C. PIN, D. Radial', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., PIN", 'role': 'assistant'}]