This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Trauma, Subject name: Surgery
[{'content': 'Whiplash injury is tear of which ligament \nSelect and explain. \nA. Ligamenta flava, B. Ant. longitudinal ligament, C. Post.longitudinal ligament, D. Supraspinal ligament', 'role': 'user'}, {'content': 'Answer: B \nExplanation: .', 'role': 'assistant'}]