Which virus is known to cause serious liver disease?

The choice of Hepatitis C Virus as the correct answer is based on its well-documented association with causing serious liver disease, including chronic hepatitis, cirrhosis, and liver cancer. Hepatitis C primarily affects the liver and can lead to long-term health complications if left untreated.

While Hepatitis A and Hepatitis B also cause liver disease, they do so in different contexts. Hepatitis A usually results in an acute infection that generally resolves on its own without leading to chronic liver disease. Hepatitis B can result in chronic infection and serious liver problems, but it is most often associated with more acute viral hepatitis compared to Hepatitis C.

HIV, on the other hand, primarily affects the immune system and does not directly cause liver disease, although related complications may occur due to co-infections or the effects of antiretroviral therapy.

Thus, the focus on the Hepatitis C Virus demonstrates its significant threat as a leading cause of serious liver disease, particularly in chronic forms where continuous infection can persist for decades.