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: Pediatrics
Pigmentation and growth retardation is seen in? 
Select and explain. 
A. Zinc deficiency, B. Riboflavin deficiency, C. Niacin deficiency, D. Vit A deficiency
A: Zinc deficiency
Answer: A: Zinc deficiency 
Explanation: Ans. is 'a' i.e., Zinc dificiency