This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen and pelvis, Subject name: Anatomy
[{'content': 'The fascia of Waldeyer belongs to \nSelect and explain. \nA. Fascia of the pelvic wall to anorectal junction, B. Fascia of the pelvic floor, C. Fascia of the pelvic viscera, D. None of the above', 'role': 'user'}, {'content': "Answer: A \nExplanation: The presacral fascia or Waldeyer's fascia, lines the anterior aspect of the sacrum, enclosing the sacral vessels and nerves. It continues anteriorly as the pelvic parietal fascia, covering the entire pelvic cavity. These two fascias are in fact, separate anatomical entities. image ref - coloproctol.org", 'role': 'assistant'}]