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
Double stranded RNA virus ? 
Select and explain. 
A. Rotavirus, B. Measles virus, C. Mumps virus, D. Influenza virus
A: Rotavirus
Answer: A: Rotavirus 
Explanation: Ans. is 'a' i.e., Rotavirus