This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc., Subject name: Microbiology
[{'content': 'Near double stranded DNA among the following \nSelect and explain. \nA. Hepatitis A, B. Hepatitis B, C. Hepatitis C, D. Hepatitis D', 'role': 'user'}, {'content': 'Answer: B \nExplanation: (B) Hepatitis B # Genome of HBV is made of circular DNA, but it is unusual because the DNA is not fully double-stranded.> One end of the full length strand is linked to the viral DNA polymerase.> The genome is 3020-3320 nucleotides long.', 'role': 'assistant'}]