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': "All of the following are X - linked except - \nSelect and explain. \nA. G - 6 PD deficiency, B. Hemophilia A, C. Von - willebrand's disease, D. Fragile X syndrome", 'role': 'user'}, {'content': 'Answer: C \nExplanation: X - linked diseases -\n\nHemophilia A\xa0\xa0\xa0\nAndrogen insensitivity\nHemophilia B\xa0\nDuchenne and Becker muscular dystrophy\nG-6 PD deficiency\nFragile X syndrome\nNephrogenic diabetes insipidus\nAdreno leukodystrophy\nMenkes syndrome\xa0\nSpinobulbar muscular atrophy', 'role': 'assistant'}]