This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
Which of the following most significantly increases the risk of HCC 
Select and explain. 
A. HBV, B. HAV, C. CMV, D. EBV
A: HBV
Answer: A: HBV 
Explanation: Risk factors for HCC Chronic infection with HBV and HCV ( 100 fold increase in risk in individuals with HBV infection) Post necrotic cirrhosis Alcoholic cirrhosis Primary biliary cirrhosis Ref : Sabiston 20th edition Pgno :1458