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
Which hepatitis virus is a DNA virus? 
Select and explain. 
A. Hepatitis A, B. Hepatitis B, C. Hepatitis C, D. Hepatitis D
B: Hepatitis B
Answer: B: Hepatitis B 
Explanation: Ans. (b) Hepatitis BRef : Jawetz 24/e, table 35-1