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
[{'content': "A young patient presents with a massive injury to proximal duodenum, head of pancreas and distal common bile duct. The procedure of choice in this patient should be : \nSelect and explain. \nA. Roux-en-Y anastomosis, B. Pancreaticoduodenectomy(Whipple's operation), C. Lateral tube jejunostomy, D. Retrograde jejunostomy", 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]