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
Varicella are classified under : 
Select and explain. 
A. Enterovirus, B. Retrovirus, C. Poxvirus, D. Herpes virus
D: Herpes virus
Answer: D: Herpes virus 
Explanation: None