This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General, Subject name: Skin
Acrodermatitis enteropathica is caused by deficiency of? 
Select and explain. 
A. Copper, B. Zinc, C. Magnesium, D. Selenium
B: Zinc
Answer: B: Zinc 
Explanation: ANSWER: (B) ZincREF: Rook's 8th ed p. 59.73Indirect repeat Dermatology June 2011