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': 'Menkes kinky hair disease is due to deficiency of : \nSelect and explain. \nA. Copper, B. Iodine, C. Iron, D. Selenium', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Menkes disease is an X - linked disorder due to\xa0deficiency of Copper.', 'role': 'assistant'}]