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
Guyon's canal contains which of the following nerve? 
Select and explain. 
A. Ulnar nerve, B. Radial nerve, C. Median nerve, D. Anterior interosseus nerve
A: Ulnar nerve
Answer: A: Ulnar nerve 
Explanation: 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