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
Near double stranded DNA among the following 
Select and explain. 
A. Hepatitis A, B. Hepatitis B, C. Hepatitis C, D. Hepatitis D
B: Hepatitis B
Answer: B: Hepatitis B 
Explanation: (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.