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
All of the following structures forms the boundary of the Hesselbach's triangle, EXCEPT? 
Select and explain. 
A. Rectus muscle, B. Inguinal ligament, C. Inferior epigastric vessel, D. Deep circumflex iliac vessel
D: Deep circumflex iliac vessel
Answer: D: Deep circumflex iliac vessel 
Explanation: Hesselbach's triangle is a region in the anterior abdominal wall. It is bounded inferiorly by the inguinal ligament, medially by the lateral border of the rectus muscles, and laterally by the inferior epigastric vessels.Base of the triangle is formed by pubic pecten and pectineal ligament.