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
When a down fracture Le Fort I osteotomy is performed 
Select and explain. 
A. necrosis is prevented by a blood supply to the maxilla from the palatine arteries, B. a patient with a cleft palate is more likely to develop necrosis, C. the operation is easier on a cleft palate patient because the lesser segment does not have to be detached from the nose, D. a tear in the nasal mucosa makes postoperative infection more likely
B: a patient with a cleft palate is more likely to develop necrosis
Answer: B: a patient with a cleft palate is more likely to develop necrosis 
Explanation: None