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
Medial border of Hesselbach's triangle is formed by? 
Select and explain. 
A. Linea alba, B. Linea semilunaris, C. Inferior epigastric aery, D. Conjoint tendon
B: Linea semilunaris
Answer: B: Linea semilunaris 
Explanation: Linea semilunarisREF: Keith L Moore clinical anatomy 4th edition p. 193-4, BDC Vol II P. 208-9Hasselbach's triangleMedial border: Lateral margin the rectus sheath, also called linea semilunarisSuperolateral border: Inferior epigastric vesselsInferior border: Inguinal ligament, sometimes REFerred to as Poupa's ligament