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': "The treatment of choice in annular pancreas is which of the following? \nSelect and explain. \nA. Whipple's operation, B. Duodeno-jejunostomy, C. Gastro-jejunostomy, D. Jejuno-cystostomy", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Duodeno-Duodenostomy is also done in treatment of annular pancreas.', 'role': 'assistant'}]