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': 'Tuberculosis of spine is common at: \nSelect and explain. \nA. Sacral, B. Cervica l, C. Lumbosacral, D. Thoracolumbar', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Thoracolumbar', 'role': 'assistant'}]