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: Pathology
[{'content': 'Primary sclerosing cholangitis is likely to be associated with - \nSelect and explain. \nA. Adenocarcinoma of pancreas, B. Cholangiocarcinoma, C. Hepatocellular carcinoma, D. Adenocarcinoma of gall bladder', 'role': 'user'}, {'content': 'Answer: B \nExplanation: PSC is a risk factor for cholangiocarcinoma.', 'role': 'assistant'}]