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: Orthopaedics
Most common nerve injured in posterior dislocation of hip 
Select and explain. 
A. Sciatic, B. Femoral, C. Superior glutcal nerve, D. Inferior glutcal nerve
A: Sciatic
Answer: A: Sciatic 
Explanation: None