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': 'Primary sclerosing cholangitis is likely to be associated with \nSelect and explain. \nA. Adenocarcinoma of pancreas, B. Cholangiocarcinoma, C. Hepatocellular carcinoma, D. Adenocarcinoma of gallbladder', 'role': 'user'}, {'content': "Answer: B \nExplanation: Diseases associated with PSC Chronic ulcerative colitis. Crohn's disease Autoimmune hepatitis Chronic pancreatitis Hypereosinophilia Riedel's thyroiditis Celiac disease Auto immune hemolytic anemia Sicca syndrome Sarcoidosis Glomerulonephritis Retro peritoneal fibrosis Systemic sclerosis Ref: Sabiston 20th edition Pgno : 1508-1509", 'role': 'assistant'}]