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
Each of the following viruses possesses an outer 
lipoprotein envelope except 
Select and explain. 
A. Varicella Zoster Virus, B. Papilloma Virus, C. Influenza Virus, D. Human immunodeficiency virus
B: Papilloma Virus
Answer: B: Papilloma Virus 
Explanation: None