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': 'Most common cause of gastric varices is \nSelect and explain. \nA. Splenic vein thrombosis, B. Splenectomy, C. Cirrhosis, D. Mesenteric thrombosis', 'role': 'user'}, {'content': 'Answer: C \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'}]