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': 'What is the most common skeletal finding in cephalometric radiographs in a patient with a\nhistory of cleft palate and anterior crossibte: \nSelect and explain. \nA. Maxillary retrusion, B. Mandibular protrusion, C. Mandibular retrusion, D. Maxillary protrusion', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]