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
In a 3 year old child, most common cause of hepatitis is – 
Select and explain. 
A. Pin prick, B. Saliva exchange, C. Perinatal, D. Blood transfusion
D: Blood transfusion
Answer: D: Blood transfusion 
Explanation: "Children usually acquire infection indirectly, through parenteral route from hepatitis B contaminated blood tran.sfilsion".
Other modes of transmission in children : -

Sharing of contaminated hypodermic needles used for multiple doses of infection.
Shaving razors.    •
Sexual contact Adolescent boy & girls.