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': 'The following are complications of gallstone except \nSelect and explain. \nA. Hemobilia, B. Cholangitis, C. Biliary enteric fistula, D. Acute pancreatitis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Hemobilia is bleeding from liver or gall bladder into the biliary tree due to an abnormal communication between a blood vessel and a bile duct.it is very rare in case of gallstones.It is commonly iatrogenic or due to accidental trauma. Cholangitis and pancreatitis are impoant complications of gallstones along with cholecystoduodenal /enteric/Choledochal fistula. Reference:SRB's manual of surgery,5th edition,page no:662.", 'role': 'assistant'}]