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': 'Bristow elevator is to : \nSelect and explain. \nA. Luxate the teeth., B. To elevate fractured zygomatic bone., C. For reduction of nasal complex fracture., D. All of the above.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]