This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper Extremity, Subject name: Anatomy
[{'content': "Guyon's canal contains which of the following nerve? \nSelect and explain. \nA. Ulnar nerve, B. Radial nerve, C. Median nerve, D. Anterior interosseus nerve", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans is 'a' i.e., Ulnar nerve Nerves of the upper limb in various spacesGuyon CanalUlnar nerveCarpal TunnelMedian NerveSpiral GrooveRadial NerveQuadrangular SpaceAxillary nerveTriangular SpaceRadial nerveCubital TunnelUlnar nerve", 'role': 'assistant'}]