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
[{'content': 'Acrodermatitis enterohepatica occurs due to? \nSelect and explain. \nA. Copper deficiency, B. Zinc deficiency, C. Iron deficiency, D. Folic acid deficiency', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. Zinc deficiency* AE is characterized by abnormalities in zinc absorption due to defect in intestinal zinc transporter which leads to zinc deficiency.* It is a rare autosomal recessive (AR) disorder which classically present during infancy on weaning from breast milk to formula or cereal which have lower zinc bioavailability than breast milk.* Classical features of AE include: (Mnemonic- "DEAL")* Diarrhea, Depression* Eczematous erosive dermatitis* Alopecia (non scarring), Apathetic look* Lethargy, irritability, whining and crying.', 'role': 'assistant'}]