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: Dental
[{'content': 'The Periapical lesion that would most likely contain bacteria within the lesion is \nSelect and explain. \nA. Periapical abscess, B. Periapical cyst, C. Periapical granuloma, D. Condensing osteitis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]