This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Stomach & Duodenum, Subject name: Surgery
[{'content': 'Which of the following are the bariatric surgical procedures? \nSelect and explain. \nA. Vertical banded gastroplasty, B. Roux-en Y gastric bypass, C. Biliopancreatic diversion, D. All the above', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., All the above Bariatric surgical procedures includea) Vertical banded gastroplastyb) Adjustable gastric bandingc) Roux-en Y gastric bypassd) Biliopancreatic diversione) Duodenal switch", 'role': 'assistant'}]