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: Pathology
[{'content': 'All are risk factors for cholangiocarcinoma Except \nSelect and explain. \nA. Primary sclerosing cholangitis., B. Hepatolithiasis, C. Liver flukes, D. Primary biliary cirrhosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Primary biliary cirrhosis has increased the risk of hepatocellular carcinoma.Primary sclerosing cholangitis, Hepatolithiasis, Liver flukes have increased the risk of cholangiocarcinoma.Ref: Robbins Pathology; 9th edition; Page no: 871', 'role': 'assistant'}]