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
Quadrate lobe is known as: 
Select and explain. 
A. Segment I, B. Segment II, C. Segment III, D. Segment IV
D: Segment IV
Answer: D: Segment IV 
Explanation: Quadrate lobe is an outdated term, and the preferred term is segment IV or left medial segment. Ref: Schwaz's principle of surgery 9th edition, chapter 31.