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: Surgery
[{'content': 'Ankle sprain is due to : \nSelect and explain. \nA. Rupture of anterior talo-fibular ligament, B. Rupture of posterior talo-fibular ligament, C. Rupture of deltoid ligament, D. Rupture of Calcaneo-fibular ligament', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Rupture of anterior talo-fibular ligament', 'role': 'assistant'}]