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
Most common tumour of the pancreas is 
Select and explain. 
A. Adeno-carcinoma, B. Squamous cell carcinoma, C. Adeno-squamous cell carcinoma, D. Duct cell adeno carcinoma
D: Duct cell adeno carcinoma
Answer: D: Duct cell adeno carcinoma 
Explanation: Exocrine tumors are mostly Solid tumors (75%) among which main is Ductal adenocarcinoma(85%).