This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Integrated QBank, Subject name: Unknown
A 9-year-old male comes in for a routine physical examination. The pediatrician notices that the right testis is enlarged and without tenderness. The examination reveals following finding: This fluid most likely occupies which space? 
Select and explain. 
A. D, B. A, C. B, D. C
D: C
Answer: D: C 
Explanation: The image shows the classical finding of transillumination seen in hydrocoele. A- Epididymis B- Cremasteric layer C- Tunica vaginalis D- External spermatic fascia This patient most likely has a hydrocele, which is a fluid collection in the tunica vaginalis. This is a congenital condition formed when the testis descends through the inguinal canal together with some peritoneum. Peritoneal fluid sometimes accumulates in this space.