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
[{'content': 'Which of the following most significantly increases the risk of HCC \nSelect and explain. \nA. HBV, B. HAV, C. CMV, D. EBV', 'role': 'user'}, {'content': 'Answer: A \nExplanation: 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', 'role': 'assistant'}]