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: Pathology
“Acrodermatitis enteropathica” is seen in a deficiency of 
Select and explain. 
A. Molybdenum, B. Selenium, C. Chromium, D. Zinc
D: Zinc
Answer: D: Zinc 
Explanation: Essential features of zinc deficiency are:

Distinctive rash, often around the eyes, nose, mouth, anus and distal parts.
Anorexia, often accompanied by diarrhoea
Growth retardation in children
Impaired wound healing
Hypogonadism with I reproductive capacity.
Altered immune function
Impaired night vision related to altered vitamin A metabolism
Depressed mental function
Increased incidence of congenital malformation in infants of Zn-deficient mothers. Micro and macroelements