This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'True about hepatocelluar ca is -a) Associated with HBV and HCVb) Cirrhosis is predisposing factorc) Fibrolamellar variety is not associated with cirrhosisd) Low propensity of vascular invasione) Alcoholic cirrhosis does not predispose to HCC \nSelect and explain. \nA. abc, B. bc, C. acd, D. bcd', 'role': 'user'}, {'content': 'Answer: A \nExplanation: "All patterns of hepatocellular carcinomas have a strong propensity for invasion of vascular channels." - Robbins', 'role': 'assistant'}]