This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pancreas, Subject name: Surgery
[{'content': 'Most common oncogene involved in pancreatic carcinoma is: \nSelect and explain. \nA. P53, B. K-RAS, C. APC, D. DCC', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. (b) K-RASRef: Sabiston's Textbook of Surgery, 20th ed p-1543* As per Sabiston 95% cases have K ras mutation and 90% cases have P16 mutation.", 'role': 'assistant'}]