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
All oncogenic viruses containing RNA belongs to- 
Select and explain. 
A. Picornaviridae, B. Herpesviridae, C. Retroviridae, D. All of the above
C: Retroviridae
Answer: C: Retroviridae 
Explanation: None