The commonest pancreatic tumour is -
Ductal adenocarcinoma
Cystadenoma
In sulinoma
Non islet cell tumour
Ans. is 'a' i.e., Ductal adenocarcinoma Grainger writes - "Tumors both benign and malignant, may arise in the exocrine or endocrine tissue of the pancreas. The commonest of these is ductal adenocarcinoma."