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': 'Position that is least likely possible by means of bilateral saggital split osteotomy is \nSelect and explain. \nA. Advancement, B. Set back, C. Rotation, D. Transverse', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]