Which one of the following is a DNA Virus?

Correct option is B

Among hepatitis viruses, Hepatitis B virus (HBV) is unique as it is a DNA virus. It has a partially double-stranded DNA genome and replicates through reverse transcription, which is rare among DNA viruses. Explanation of each option: • (a) Hepatitis A – This is an RNA virus, primarily spread via the fecal-oral route, causing acute hepatitis with no chronic phase. • (b) Hepatitis B – Correct. A partially double-stranded DNA virus from the Hepadnaviridae family. It can cause both acute and chronic liver disease and is transmitted via blood and body fluids. • (c) Hepatitis C – An RNA virus belonging to the Flaviviridae family. It is known for its high chronicity rate and long-term liver complications. • (d) Hepatitis D – A defective RNA virus that requires Hepatitis B for replication. It cannot exist independently without HBV co-infection.