This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pelvis and Perineum 3, Subject name: Anatomy
[{'content': 'Length of male urethra is \nSelect and explain. \nA. 10 cm, B. 15 cm, C. 20 cm, D. 30 cm', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Length of male urethra is 20 cm long and female urethra is 4 cm long. Male urethra contains 3 pas- Prostatic urethra- 4 cm Membranous urethra-0.5-0.6 cm Spongy urethra -15 to 20 cm', 'role': 'assistant'}]