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 hepatitis viruses is a DNA virus - \nSelect and explain. \nA. Hepatitis C virus, B. Hepatitis B virus, C. Delta agent, D. Hepatitis E virus', 'role': 'user'}, {'content': "Answer: B \nExplanation: Hepatitis viruses are taxonomy unrelated, except for type B which is a DNA virus all the others are RNA viruses. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO-540", 'role': 'assistant'}]