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
Which of the following is not an RNA Virus: 
Select and explain. 
A. Simian virus 40, B. Ebola, C. Rabies, D. Parainfluenza
A: Simian virus 40
Answer: A: Simian virus 40 
Explanation: Simian virus 40