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
Floating maxilla is a typical feature of the following fracture: 
Select and explain. 
A. Lefort 1, B. Lefort 2, C. Lefort 3., D. All of the above.
A: Lefort 1
Answer: A: Lefort 1 
Explanation: None