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: Pathology
The classical liver lobule is present around: 
Select and explain. 
A. Portal vein, B. Hepatic artery, C. Bile duct, D. Central vein
D: Central vein
Answer: D: Central vein 
Explanation: Central vein is present in the centre of hepatic lobule while the six portal triads will be present in the corners.
The portal triad consists of the portal vein, hepatic artery and bile duct; this portal triad will be seen in the corners of hepatic lobule.