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': 'The covering for the testis that is derived from peritoneum is which of the following? \nSelect and explain. \nA. Tunica albuginea, B. External spermatic fascia, C. Internal spermatic fascia, D. Tunica vaginalis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The tunica vaginalis is derived from peritoneum and has both visceral and parietal layers.', 'role': 'assistant'}]