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
[{'content': 'Which of the following is an RNA virus? \nSelect and explain. \nA. Hepatitis B virus, B. Hepatitis C virus, C. Herpes virus, D. Adenovirus', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ref: Ananthnarayan and Paniker's Textbook of Microbiology, 8th ed. pg. 545DNA and RNA virusDNA virusRNA virus* Pox virus: largest virus* Parvovirus: smallest virus* Adenovirus* Papovavirus* Hepadna virus* Herpesvirus* Rotavirus: only double stranded RNA virus* Orthomyxovirus* Reovirus* Bunya virus* Arena virus* Hepatitis A, C, D, E virus* Picorna, polio, coxsackie, echo and entero virus.", 'role': 'assistant'}]