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': 'Nerve entrapped in pyriformis syndrome is \nSelect and explain. \nA. Superior gluteal nerve, B. Inferior gluteal nerve, C. Pudendal nerve, D. Sciatic nerve', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Entrapment of Sciatic nerve by inflamed pyriformis muscle is called as pyriformis syndrome.', 'role': 'assistant'}]