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': 'A compound fracture is initially treated by antibiotics, wound toilet and \nSelect and explain. \nA. Skin cover, B. External splintage, C. Prosthesis, D. Internal fixation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. External splint', 'role': 'assistant'}]