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': 'Hapsburg jaw: \nSelect and explain. \nA. Class III, B. Class II division 1, C. Class I, D. Class II division 2', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]