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': 'Infection/ inflammation of all of the following causes enlarged superficial inguinal lymph nodes except: \nSelect and explain. \nA. Isthmus of uterine tube, B. Inferior pa of anal canal, C. Big toe, D. Penile urethra', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D. i.e. Penile urethra Penile (spongy) urethra of male mostly drain to deep inguinal lymph nodes', 'role': 'assistant'}]