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
The covering for the testis that is derived from peritoneum is which of the following? 
Select and explain. 
A. Tunica albuginea, B. External spermatic fascia, C. Internal spermatic fascia, D. Tunica vaginalis
D: Tunica vaginalis
Answer: D: Tunica vaginalis 
Explanation: The tunica vaginalis is derived from peritoneum and has both visceral and parietal layers.