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: Unknown
[{'content': 'Alopecia, Hyper pigmentation, Hypogonadism characteristic for deficiency of \nSelect and explain. \nA. Zinc, B. Magnesium, C. Selenium, D. Copper', 'role': 'user'}, {'content': "Answer: A \nExplanation: The essential feature of Zinc deficiency.\n\xa0\nA distinctive rash most often around the eyes, nose, mouth, anus and distal parts called\n\xa0\nAcrodermatitis Enteropathica.\n\xa0\nGrowth retardation in children.\n\xa0\nImpaired wound healing\n\xa0\nHypogonadism with diminished reproductive capacity.\n\xa0\nAnorexia often accompanied by diarrhoea\n\xa0\nDepressed mental function.\n\xa0\nOther important disease\n\xa0\nSelenium deficiency causes Keshan disease. Copper deficiency causes Menke's disease.", 'role': 'assistant'}]