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: Anatomy
[{'content': 'Which vein drain directly into IVC - \nSelect and explain. \nA. Superior mesentric vein, B. Inferior mesentric vein, C. Hepatic vein, D. Splenic vein', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Veins draining into inferior vena cava\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Common iliac veins\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Renal veins\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Right gonadal vein\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Right suprarenal vein\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Inferior phrenic veins\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Hepatic veins\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 3rd & 4th lumbar veins', 'role': 'assistant'}]