Which of the following organisms cause hepatitis B?

Hepatitis B is caused by the Hepatitis B virus (HBV), a hepatotropic DNA virus that infects liver cells and can cause acute or chronic liver disease, cirrhosis, or liver cancer. It is transmitted through blood or bodily fluids. Bacteria cause conditions like tuberculosis or cholera, fungi cause infections like candidiasis or aspergillosis, and Plasmodium causes malaria (a protozoan, not a virus or bacterium).