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': 'Deficiency of which of the following causes perioral rash, gonadal atrophy, neuritis and pigmentation of skin crease ? \nSelect and explain. \nA. Zinc, B. Copper, C. Selenium, D. Magnesium', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The condition described is acrodermatitis enteropathica.', 'role': 'assistant'}]