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
Exanthema subitum is caused by ? 
Select and explain. 
A. HHV-6, B. HHV-8, C. Parvovirus, D. Coxsackievirus
A: HHV-6
Answer: A: HHV-6 
Explanation: Ans. is 'a' i.e., HHV-6 HHV-6 causes roseola infantum (also called exanthema subitum or sixth disease).