This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inborn Errors of Metabolism, Subject name: Pediatrics
[{'content': "Menke's disease is due to defect in the metabolism of: \nSelect and explain. \nA. Zinc, B. Copper, C. Selenium, D. Iron", 'role': 'user'}, {'content': "Answer: B \nExplanation: b. Copper(Ref: Nelson 20/e p 344)In Menke's disease, the defective protein is a copper-binding ATPase (ATP7A), responsible for distribution & metabolism of copper in tissues.", 'role': 'assistant'}]