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': 'Wrist drop is seen with ? \nSelect and explain. \nA. Radial nerve palsy, B. Median nerve palsy, C. Ulnar nerve palsy, D. Posterior interosseous nerve palsy', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Radial nerve palsy", 'role': 'assistant'}]