This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gall Bladder & Bile Ducts, Subject name: Surgery
[{'content': 'Incidence of Gallstone is high in: \nSelect and explain. \nA. Partial hepatectomy, B. Ileal resection, C. Jejuna resection, D. Subtotal gastrectomy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Ileal resection* Ileum is the principal Site for Entero hepatic Circulation- It resected it can lead to decreased Bile salt pool and hence gall stone', 'role': 'assistant'}]