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': 'A patient met with Road traffic Accident with subsequent injury to the left knee. Dial test was positive. What could be the cause: \nSelect and explain. \nA. Medial Collateral Ligament Injury, B. Medial Meniscal Injury, C. Lateral Meniscus Tear, D. Posterolateral Corner Injury', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Posterolateral Corner Injury', 'role': 'assistant'}]