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': 'Autonomous zone of sensory supply by radial nerve is \nSelect and explain. \nA. P dorsal web space, B. Tip of index finger, C. Tip of thumb, D. Tip of little finger', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer- A. P dorsal web spaceAutonomous Zone of peripheral nerves:Radial nerve:lst dorsal web space of hand (Anatomical snuff box)Median nerve:Distal phalanx (tip) of index finger (2nd finger)Unar nerve: Distal phalanx (tip) of little finger (5th finger).', 'role': 'assistant'}]