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': 'In Intermittent claudication, the crampy pain in muscles is \nSelect and explain. \nA. Brought on by walking, B. Not present on taking the first step., C. Relieved by standing still/rest., D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: INTERMITTENT CLAUDICATION \n→ Crampy pain in muscle that is:\n\nBrought on by walking (exercise)\nNot present on taking the first step (unlike osteoarthritis)\nRelieved by standing still / rest (unlike pseudoclaudication)', 'role': 'assistant'}]