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: Orthopaedics
[{'content': 'Burst Fracture of the spine is a- \nSelect and explain. \nA. Extension injury, B. Compression Fracture, C. Direct injury, D. Flexion - rotation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: A burst fracture is a descriptive term for an injury to the spine in which the vertebral body is severely compressed.\nThey typically occur from severe trauma, such as a motor vehicle accident or a fall from a height.\nWith a great deal of force vertically onto the spine, a vertebra may be crushed.', 'role': 'assistant'}]