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': 'All are true about Embolic Arterial occlusion except- \nSelect and explain. \nA. No previous history, B. Muscles are unaffected, C. Pulse is absent, D. Anaesthesia is present', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]