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
The architecture of the liver is divided into lobes by-a) Bile ductb) Hepatic arteryc) Hepatic veind) Portal veine) Lymphatics 
Select and explain. 
A. abd, B. bcd, C. abc, D. ab
A: abd
Answer: A: abd 
Explanation: None