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': 'NOT a content of Deep perineal pouch among the following is \nSelect and explain. \nA. External urethral sphincter, B. Prostatic urethra, C. Bulbourethral gland, D. Deep transverse perineal muscle', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Membranous urethra is a content of Deep perineal pouch, not prostatic urethra.', 'role': 'assistant'}]