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': "The most impoant sign in Volkmann's ischaemic contracture is; \nSelect and explain. \nA. Pain, B. Pallor, C. Numbness, D. Obliteration of radial pulse", 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Pain', 'role': 'assistant'}]