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': "`Ulnar paradox' is seen in ? \nSelect and explain. \nA. High ulnar lesion, B. Low ulnar lesion, C. Triple nerve disease, D. All", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., High ulnar lesion", 'role': 'assistant'}]