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 boundaries of the interconnection between greater sac and lesser sac of peritoneum known as 'Foramen of Winslow' are all, EXCEPT: 
Select and explain. 
A. Caudate lobe of liver, B. Inferior vena cava, C. Free border of lesser omentum, D. 4th pa of Duodenum
D: 4th pa of Duodenum
Answer: D: 4th pa of Duodenum 
Explanation: Interconnection between greater sac and lesser sac of peritoneum is known as Foramen of Winslow. It has the following boundaries: Superior boundary: Caudate lobe of liver Anterior boundary: Free edge of lesser omentum containing common bile duct, hepatic aery andpoal vein. Inferior boundary: First pa of duodenum Posterior boundary: Inferior vena cava and abdominal aoa