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: Radiology
[{'content': 'All of the following are considered in differential diagnosis of a pericoronal radiolucency except \nSelect and explain. \nA. Odontome, B. Ameloblastic fibro-odontome, C. Percipical osteitis, D. AOT', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]