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: Surgery
[{'content': 'Which of the following is considered the highest and most severe classification of maxillary fracture? \nSelect and explain. \nA. LeFort I, B. LeFort II, C. LeFort III, D. LeFort IV', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Maxillary fractures may be classified as LeFort I, II, or III. The LeFort III is the highest and most severe.', 'role': 'assistant'}]