This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Wilson Disease, Subject name: Medicine
[{'content': 'Most common cause of hemobilia is: \nSelect and explain. \nA. Trauma, B. Hemangioma, C. Rupture of hepatic aery aneurysm, D. Hepatitis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Hemobilia presents with triad of biliary pain,obstructive jaundice and melena. Causes of hemobilia are: 1. Iatrogenic trauma- after cholecystectomy/ERCP/liver biopsy2. Accidental trauma3. Acalculous cholecystitis4. Hepatocellular Carcinoma>>Cholangiocarcinoma5. Inflammatory conditions ranging from ascariasis to PAN6. Vascular malformation7. Coagulopathy Most common site where bleed originates in Hemobilia is liver> extra-hepatic biliary pathway> gallbladder>pancreas.', 'role': 'assistant'}]