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': "With couinaud's segment nomenclature, which one the following segments of liver has an independent vascularization \nSelect and explain. \nA. Segment I, B. Segment II, C. Segment IV, D. Segment VIII", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Segment I is the caudate lobe and is situated posterior l and it may receive its supply from both the right and the left branches of poal vein. It contains one or more hepatic veins which drain directly into the IVC Ref: Sabiston 20th edition Pgno : 1422', 'role': 'assistant'}]