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': 'When an extra oral vertical subsigmoid osteotomy is performed; False is \nSelect and explain. \nA. surgical access is easier than from an intra oral operation, B. postoperative morbidity is reduced, C. the position of the lingula can be found by palpating a small bony protuberance on the lateral surface on the ramus, D. the distance the mandible can be pushed back is limited by bony obstruction to the coronoid process.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]