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: Surgery
[{'content': 'The superficial inguinal ring is a defect in- \nSelect and explain. \nA. Transversalis fascia, B. Internal oblique, C. External oblique, D. External oblique aponeurosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]