This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuroanatomy, Subject name: Anatomy
[{'content': 'Which of the following is the most common congenital anomaly? \nSelect and explain. \nA. Cleft lip, B. Cleft palate, C. Cleft lip and cleft palate both, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C Cleft lip and cleft palate bothRef: Clinical Anatomy, Vishram Singh, pg. 306* The cleft lip and palate are the most common congenital anomalies of the head and neck, occurring in 1 per 750 live births.', 'role': 'assistant'}]