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 false about portal vein? 
Select and explain. 
A. Formed behind the neck of pancreas, B. Bile duct lies anterior & right to it, C. Gastro duodenal artery lies to the left & anterior to it, D. Ascends behind the 2nd part of duodenum
D: Ascends behind the 2nd part of duodenum
Answer: D: Ascends behind the 2nd part of duodenum 
Explanation: Portal vein ascends behind the first part of the duodenum.
Other options are correct.