This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
Pancreatic Ca is caused by - 
Select and explain. 
A. Fasciola, B. Clonorchis, C. Paragonimus, D. None
B: Clonorchis
Answer: B: Clonorchis 
Explanation: In most cases the disease tends to remain low grade and chronic producing only minor symptoms of abdominal distress,intermittent diarrhea and liver pain or tenderness . C.sinensis has been linked to bile duct carcinoma.It is mostly observed in areas where chlonorchiasis is endemic. (refer pgno:126 baveja 3 rd edition)