This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
[{'content': 'In a patient with sponteneous biliary enteric fistula the most common site of communication with gall bladder is \nSelect and explain. \nA. Duodenum, B. Jejunum, C. Ileum, D. Transverse colon', 'role': 'user'}, {'content': 'Answer: A \nExplanation: .BILIARY FISTULAS - Types a. External: Usually occurs as a complication of surgery following-- * Gastrectomy. * Cholecystectomy open or laparoscopic. * CBD surgery. * Pancreatic surgery. b. Internal: * Cholecysto-duodenal fistula causing gallstone ileus. * Cholecysto-enteric fistula. * Cholecysto-choledochal fistula. External biliary fistulas are difficult to manage, often dangerous, but many a times resolve spontaneously. ref:SRB&;s manual of surgery,ed 3,pg no 593', 'role': 'assistant'}]