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
Cause of Reye's syndrome in children: March 2013 
Select and explain. 
A. Polio virus, B. Measles virus, C. Influenza virus, D. HIV
C: Influenza virus
Answer: C: Influenza virus 
Explanation: Ans. C i.e. Influenza virus