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': 'What is the inheritance pattern of marfan syndrome? \nSelect and explain. \nA. AD, B. AR, C. XR, D. XD', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Refer the byte "Menddian disorders and their Inbetitance pattern"', 'role': 'assistant'}]