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
Which of the following is related with 3rd part of duodenum? 
Select and explain. 
A. Portal vein, B. Head of pancreas, C. Hepatic artery, D. Superior mesentric vein
D: Superior mesentric vein
Answer: D: Superior mesentric vein 
Explanation: 3rd part of duodenum is crossed by superior mesentric vessels.