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': 'All of the following maintain the stability of ankle joint except: \nSelect and explain. \nA. Cruciate ligament, B. Shape of the bones, C. Tendons of muscle which cross the joint, D. Collateral ligament', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Cruciate ligament Cruciate ligaments are found in the knee and not ankle. Cruciate ligaments are pairs of ligaments arranged like a letter X. They are the anterior cruciate ligament (ACL) and the posterior cruciate ligament (PCL). They maintain anteroposterior stability of the knee joint.', 'role': 'assistant'}]