This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gall Bladder & Bile Ducts, Subject name: Surgery
Cholangiocarcinoma is associated with - 
Select and explain. 
A. Chlonorchis sinensis, B. Schistosoma, C. Plasmodium, D. None
A: Chlonorchis sinensis
Answer: A: Chlonorchis sinensis 
Explanation: Ans. (a) Chlonorchis sinensisRef: Bailey 26th edition Table page 1115* Opisthorcis vivernii and Clonorchis sinensis are associated with Cholangiocarcinoma.