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': 'The most important reason for placing an alveolar graft in cleft palate patient is \nSelect and explain. \nA. Improve pronunciation, B. Improve breathing efficiency, C. Make eruptive pathway for permanent canine, D. Improve feeding efficiency', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]