Multiple choice Which of the following diseases is caused by a DNA virus? Hepatitis A Hepatitis B Hepatitis C Hepatitis D Hepatitis E Reveal answer Fill a bubble to check yourself B Correct answer Explanation Hepatitis B is an infectious illness of the liver caused by the hepatitis B virus. Hepatitis B virus is a DNA virus and is enveloped. The DNA is only partly double stranded and forms a circle of around 3,200 bases.