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': 'Immediate treatment of compound fracture of tibia is \nSelect and explain. \nA. Intravenous antibiotics, B. Thorough debridement, C. Internal fixation of fracture, D. Amputation of limb', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Thorough debridement', 'role': 'assistant'}]