This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition, Subject name: Pediatrics
Recommended daily dietary allowance of vitamin A for infants is 
Select and explain. 
A. 100-200 microgram, B. 300-400 microgram, C. 500-600 microgram, D. 750 microgram
B: 300-400 microgram
Answer: B: 300-400 microgram 
Explanation: Recommended daily dietary allowance for vitamin A for an infant is 300-400 microgram. Ref: Page 120; Ghai essential pediatrics; 6th edition