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 structure(s) passes behind the inguinal ligament -a) Femoral branch of genitofemoral nerveb) Superficial epigastric arteryc) Psoas majord) Femoral veine) Saphenous vein 
Select and explain. 
A. abc, B. ad, C. bc, D. acd
D: acd
Answer: D: acd 
Explanation: Structures passing deep to inguinal ligament.
-        Psoas major, Iliacus, pectineus
-        Femoral nerve and vessels
-        Lateral cutaneous nerve of thigh
-        Femoral branch of genitofemoral nerve
-        Lymphatics