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: Surgery
[{'content': 'Trendelenberg test is positive due to injury to: \nSelect and explain. \nA. Sup gluteal nerve, B. Inf gluteal nerve, C. Obturator nerve, D. Tibial nerve', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A.i.e. Superior gluteal nerve', 'role': 'assistant'}]