This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Surgery
[{'content': 'Commonest type of cleft lip is \nSelect and explain. \nA. Cleft lip alone, B. Bilateral, C. Midline, D. Combined with cleft palate', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Distribution of Cleft types Cleft lip alone - 15% Cleft lip & palate - 45% Isolated cleft palate - 40% Ref : Bailey & Love 25/e p657', 'role': 'assistant'}]