This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': 'Menkes syndrome is a disorder of \nSelect and explain. \nA. Copper transpo, B. Iron Transpo, C. Sodium transpo, D. Potassium Transpo', 'role': 'user'}, {'content': "Answer: A \nExplanation: Menkes kinky hair syndromeEtiologyFeaturesPrognosisX-linked metabolic disturbance of copper metabolismMutation in copper-transpoing ATP7A geneMental retardationHypocupremiaDecreased circulating ceruloplasminChildren with this disease often die within 5 years because of dissecting aneurysms or cardiac rupture(Ref: Harrison's 18/e p604)", 'role': 'assistant'}]