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': 'Which of the following are X- linked recessive disorders: \nSelect and explain. \nA. Marfan Syndrome, B. Phenylketonuria, C. Neurofibromatosis, D. Duchenne muscular dystrophy', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Duchenne muscular dystrophy', 'role': 'assistant'}]