This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'Uncommon cause of upper GI bleed ? \nSelect and explain. \nA. Varices, B. Erosive gastritis, C. Peptic ulcer, D. Carcinoma stomach', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e.Carcinoma stomach", 'role': 'assistant'}]