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': 'Injury to which of the following muscle may lead to urinary incontinence along with cystocele, rectocele and Prolapse of uterus \nSelect and explain. \nA. Ischiocavernosus, B. Pubococcygeus, C. Bulbospongiosus, D. Urethral and anal sphincter', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Pubococcygeus is a pa of pelvic diaphragm Pelvic diaphragm - Mainly constituted by Levator ani muscles (Pubococcygeus, iliococcygeus) & Ischio-coccygeus, which suppos pelvic viscera so Injury to pubococcygeus muscle may lead to urinary incontinence along with cystocele, rectocele and Prolapse of uterus', 'role': 'assistant'}]