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: Medicine
[{'content': "Aortic dissection is seen in - \nSelect and explain. \nA. Down's syndrome, B. Klinefelters syndrome, C. Turners syndrome, D. Marfan's syndrome", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]