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: Pathology
[{'content': 'Lesions associated with vital tooth \nSelect and explain. \nA. condensing osteitis, B. cernentoma, C. periapical abscess, D. none of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]