This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetic Basics Of Carcinogenesis, Subject name: Pathology
Which of the following is an oncogenic RNA virus? 
Select and explain. 
A. Hepatitis B virus, B. Human papilloma virus, C. Epstein Barr virus, D. Hepatitis C virus
D: Hepatitis C virus
Answer: D: Hepatitis C virus 
Explanation: Hepatitis C virus (HCV) is only oncogenis RNA virus in the options. Others mentioned are oncogenic DNA viruses.