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
[{'content': 'Structure passing deep to sacrococcygeal ligament are all except \nSelect and explain. \nA. S5 nerve, B. Coccygeal nerve, C. Filum terminale, D. Internal pudendal aery', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans: D Internal pudendal aerylRef. Textbook of human anatomy Pa-3 p. 811Structures passing through sacral hiatus (deep to sacrococrygeal ligament) are :-5th sacral nerveCoccygeal nerveFilum terminale', 'role': 'assistant'}]