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': 'Compression osteosynthesis may be used in all these areas except? \nSelect and explain. \nA. Comminuted fractures of mandible, B. FZ suture, C. Root of zygomatic arch, D. Bone graft fixation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Apart from options b, c, d, compression osteosynthesis may be used in linear fractures (oblique fractures) of mandible.', 'role': 'assistant'}]