This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Liver & Biliary Tract, Subject name: Pathology
[{'content': 'Florid duct lesions are diagnostic of \nSelect and explain. \nA. Klatskin tumor, B. Primary sclerosing cholangitis, C. Primary biliary cirrhosis, D. Secondary biliary cirrhosis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Primary biliary cirrhosis(Ref: Robbins 9th/pg 858; 8th/pg 867)In Primary biliary cirrhosis: Interlobular bile ducts are actively destroyed by lymphoplasmacytic inflammation with or without granulomas (the florid duct lesion)', 'role': 'assistant'}]