This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Amputations and Spos Injury, Subject name: Orthopaedics
Posterior cruciate ligament--true statement is: 
Select and explain. 
A. Attached to the lateral femoral condyle, B. Intrasynol, C. Prevents posterior dislocation of tibia, D. Relaxed in full flexion
C: Prevents posterior dislocation of tibia
Answer: C: Prevents posterior dislocation of tibia 
Explanation: PCL prevents posterior gliding (subluxation) of tibia over femur. PCL (stouter ligamentous structure) PCL tests : Posterior drawer test Reverse pivot shift test Quadriceps active test