This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Management in Orthopedics, Subject name: Orthopaedics
[{'content': 'Jefferson fracture is - \nSelect and explain. \nA. Fracture of atlas, B. Fracture of axis, C. Fracture of spinous process of C7, D. Fracture of any cervical veebra', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Jefferson&;s fracture is the fracture of C1 veebra (atlas). Reference- Maheshwari-9th edn- pg no 3', 'role': 'assistant'}]