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': 'About posterior cruciate ligament - the true statement is ? \nSelect and explain. \nA. Attached to the lateral femoral condyle, B. Intrasynol, C. Prevents posterior dislocation of tibia, D. Relaxed in full flexion', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Posterior cruciate ligament prevents posterior dislocation of tibia. Posterior displacement is prevented by anterolateral bundle during knee flexion and by the posteromedial bundle during knee extension.', 'role': 'assistant'}]