This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdominal wall ,Inguinal and Femoral region, Subject name: Anatomy
[{'content': 'structure passing through deep inguinal ring: \nSelect and explain. \nA. Inferior epigastric vessels, B. Spermatic cord, C. Ilioinguinal nerve, D. Femoral branch of genitofemoral nerve', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Spermatic cord passes through deep inguinal ring. Inferior epigastric vessels lie medial to the ring. Genital (not femoral) branch of genitofemoral nerve passes through deep inguinal ring. Ilioinguinal nerve enters the inguinal canal by piercing the wall and not through the deep inguinal ring.', 'role': 'assistant'}]