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: Anatomy
[{'content': 'Aery to bleed in duodenal ulcer haemorrhage - \nSelect and explain. \nA. Splenic aery, B. Gastroduodenal aery, C. Left gastric aery, D. Sup. mesenteric aery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Gastro duodenal aery is the most common aery involved in duodenal ulcer hemorrhage. Also, remember A peptic ulcer is the most common cause of massive upper gastrointestinal bleed (Duodenal ulcers > Gastric ulcers) Bleeding ulcers in the duodenum are usually located on the posterior surface of the duodenal bulb. Ref : Bailey & Love 25/e p1045', 'role': 'assistant'}]