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: Microbiology
Which one of the following virus is double stranded RNA virus? 
Select and explain. 
A. Hepatitis -A, B. Hepatitis-E, C. Reo virus, D. Corona virus
C: Reo virus
Answer: C: Reo virus 
Explanation: All RNA viruses are single stranded except Reo virus.