This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Regional anaesthesia, Subject name: Anaesthesia
[{'content': 'Spinal anesthesia should be injected into the space between \nSelect and explain. \nA. T12-L1, B. L1-L2, C. L3-L4, D. L5-S1', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Spinal anesthesia is usually injected at L3-L4, L2-L3', 'role': 'assistant'}]