This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Surgery
[{'content': 'Which of the following vessel is most commonly involved in hemorrhage from duodenal ulcer? \nSelect and explain. \nA. SMA, B. IVC, C. Gastroduodenal aery, D. Right Gastroepiploic aery', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Bleeding: MC complication, on posterior wall, gastroduodenal aery is most commonly involved', 'role': 'assistant'}]