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
RNA oncogenic virus amongst the following is? 
Select and explain. 
A. HIV, B. HTLV, C. HBV, D. Cytomegalovirus
A: HIV
Answer: A: HIV 
Explanation: Oncogenic RNA Virus is Retrovirus. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO-566