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
Reverse transcriptase sequence in HIV is best described as: 
Select and explain. 
A. RNA - DNA - RNA, B. DNA - RNA, C. DNA - RNA - DNA, D. RNA - DNA
A: RNA - DNA - RNA
Answer: A: RNA - DNA - RNA 
Explanation: Ans. (a) RNA - DNA - RNA