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
Which vaccines are not given in a 8 years old unimmunized child – 
Select and explain. 
A. Pertusis, B. Salk vaccine, C. BCG, D. All of these
D: All of these
Answer: D: All of these 
Explanation: None