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: Surgery
Segment I of the liver is known as: 
Select and explain. 
A. Quadrate lobe, B. Caudate lobe, C. Riedel's lobe, D. Left lobe
B: Caudate lobe
Answer: B: Caudate lobe 
Explanation: Most surgeons still refer to segment I as the caudate lobe, rather than segment I. Ref: Schwaz's principle of surgery 9th edition, chapter 31.