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 compressed in Guyon's canal is: September 2003 \nSelect and explain. \nA. Median and ulnar, B. Median, C. Ulnar, D. Radial", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C i.e. Ulnar', 'role': 'assistant'}]