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
Second pa of duodenum not related posteriorly to? 
Select and explain. 
A. IVC, B. Psoas major, C. Bile duct, D. Renal aery
C: Bile duct
Answer: C: Bile duct 
Explanation: Ans. is 'c' i.e., Bile duct