This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunization, Subject name: Pediatrics
According to latest guidelines of vaccination, which of the following is applicable at the age of 5 years? 
Select and explain. 
A. DT booster + Vitamin A, B. DT, C. DPT + OPV, D. DPT + Vitamin A
D: DPT + Vitamin A
Answer: D: DPT + Vitamin A 
Explanation: d. DPT + Vitamin A(Ref: Nelson's 20/e p 3212, Ghai 8/e p 193-194)DPT booster & Vitamin A supplementation are recommended at 5 years age.