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: Microbiology
[{'content': 'All the following parasites cause malignancy except \nSelect and explain. \nA. Schistosoma haematobium, B. Clonorchis sinensis, C. Opisthrochis viverrini, D. Onchocerca volvulus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: S. haematobium - SCC of urinary bladder\nC. Sinensis - Cholangiocarcinoma of liver, bileduct.\nO. Viverrini - Cholangiocarcinoma of bileduct.', 'role': 'assistant'}]