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': 'Down fracture of zygomatic arch is done in the treatment of \nSelect and explain. \nA. TMJ ankylosis, B. Chronic Subluxation, C. Condylar fracture, D. Zygomatic fracture', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]