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 of the following viruses composed of two distinct capsids enclosing the double stranded RNA - 
Select and explain. 
A. Adenovirus, B. Reovirus, C. Herpes virus, D. Myxovirus
B: Reovirus
Answer: B: Reovirus 
Explanation: Ans. is 'b' i.e. Reovirus