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: Biochemistry
[{'content': 'Acrodermatitis enteropathica is a classical presentation due to deficiency of \nSelect and explain. \nA. Vitamin K, B. Zinc, C. Copper, D. Selenium', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]