This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
Double stranded RNA is seen in - 
Select and explain. 
A. Reovirus, B. Adenovirus, C. Parvovirus, D. Retrovirus
A: Reovirus
Answer: A: Reovirus 
Explanation: In reoviruses the double stranded RNA is transcribed into mRNA by viral polymerase REF:ANANTHANARAYAN AND PANIKER'S TEXTBOIK OF MICROBIOLOGY 9TH EDITION PAGE NO:433