This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and paranasal sinuses, Subject name: ENT
[{'content': 'Pyramidal fracture of maxilla is \nSelect and explain. \nA. Le Fo - 1, B. Le Fo -2, C. Le Fo-3, D. Craniofacial disruption', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Pyramidal or Le Fo 2 fracture of maxilla passes through the root of nose, lacrimal bone, the floor of the orbit, the upper pa of the maxillary sinus and pterygoid plates. Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, pg no. 207', 'role': 'assistant'}]