This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Development of GU system and Neuro-vascular supply of pelvis & perineum, Subject name: Anatomy
[{'content': '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: Presacral fascia of Waldeyer, lies 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 and is limited posteroinferiorly, as it fuses with the mesorectal fascia, lying above the levator ani muscle at the level of the anorectal junction.', 'role': 'assistant'}]