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': 'Treatment of acute femoral embolus is- \nSelect and explain. \nA. Warfarin, B. Heparin, C. Immediate embolectomy, D. Embolectomy after 5 days bed rest', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]