This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Muscles of Lower Limb, Subject name: Anatomy
Structure passing through the greater sciatic foramen are all of the following except ` 
Select and explain. 
A. Pyriformis, B. Superior gluteal nerve, C. Inferior gluteal nerve, D. Obturator internus tendon
D: Obturator internus tendon
Answer: D: Obturator internus tendon 
Explanation: Structure passing through lesser sciatic notch Tendon of obturator internus Pudendal nerve Nerve to obturator internus Internal pudendal aery