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
Chicken pox is a common disease of childhood. It is caused by which of the following viruses? 
Select and explain. 
A. Cytomegalovirus, B. Rotavirus, C. Varicella-zoster virus, D. Adenovirus
C: Varicella-zoster virus
Answer: C: Varicella-zoster virus 
Explanation: Varicella-zoster virus is a herpesvirus. Chickenpox is a highly contagious disease of childhood that occurs in the late winter and early spring. It is characterized by a generalized vesicular eruption with relatively insignificant systemic manifestations.