Chronic infections with which of the following viruses are strongly associated with chronic liver disease and hepatocellular carcinoma?

Correct option is B

Hepatitis B and C are the most common causes of chronic hepatitis, cirrhosis, and liver cancer. A and E usually cause acute self-limiting infections.
Explanation of options: (a) ✘ HAV and HEV cause acute hepatitis, not chronic disease. (b) ✔ Correct; HBV & HCV → chronic hepatitis & HCC. (c) ✘ HDV needs HBV co-infection, not chronic by itself. (d) ✘ F and G not clinically significant.