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: Pathology
[{'content': "A patient with multiple imparted supernumerary teeth, and can bring his shoulders together is suffering from: \nSelect and explain. \nA. Klinefelter's syndrome, B. Trisomy 21, C. Down's syndrome, D. Cleidocranial dysostosis", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]