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': 'Isolated gastric varices \nSelect and explain. \nA. Profuse bleeding, B. Most commonly due to splenic vein thrombosis, C. EUS is better than endoscopy, D. Single treatment can lead to eradication', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Most common cause of gastric varices : Cirrhosis Most common cause of isolated gastric varices : Splenic vein thrombosis Ref: Sabiston 20th edition Pgno : 1232', 'role': 'assistant'}]