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 ligaments contribute to the stability of ankle (talocrural) joint except \nSelect and explain. \nA. Calcaneonavicular (spring), B. Deltoid, C. Lateral, D. Posterior talofibular', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A. i.e. Calcaneonavicular ligament', 'role': 'assistant'}]