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: Surgery
Organism associated with fish consumption that also cause carcinoma gallbladder 
Select and explain. 
A. Clonorchis sinensis, B. Gnathostoma, C. Strongyloides cantonensis, D. H. dimunata
A: Clonorchis sinensis
Answer: A: Clonorchis sinensis 
Explanation: Ans. a. Clonorchis sinensis