This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Liver, Subject name: Surgery
[{'content': 'Which of the following marked structure is known as 9th segment of liver? \nSelect and explain. \nA. A, B. B, C. C, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: According to latest study total 9 segments are there - Segment IX is Paracaval poion of caudate lobe. The lobe shown is caudate lobe. A = SPIEGEL LOBE - segment I B = PARACAVAL POION - segment 9 C = CAUDATE PROCESS There is direct venous drainage of caudate lobe into IVC', 'role': 'assistant'}]