This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen & Pelvis, Subject name: Anatomy
Choose the appropriate lettered structure in this computed tomography scan of the male perineum and pelvis. A knife wound to the obturator foramen might injure which structure? 
Select and explain. 
A. A, B. B, C. C, D. D
D: D
Answer: D: D 
Explanation: (d) The obturator foramen transmits the obturator nerve and vessels. Therefore, the knife wound in this foramen injures the obturator nerve and vessels.