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': 'Cholangio carcinoma of liver caused by - \nSelect and explain. \nA. Hepatitis B infection, B. Cirrhosis of liver, C. Alpha - feto protein, D. Clonorchis - sinensis infection', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]