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': 'Exarticulation of teeth means \nSelect and explain. \nA. Intrusion, B. Extrusion, C. Subluxation, D. Avulsion', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]