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: Anaesthesia
[{'content': 'Spinal anesthesia is given at which of the following levels : \nSelect and explain. \nA. L1-2, B. L2-4, C. Midline of thorax, D. Below L5 (caudal)', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. L24 Spinal anesthesia is usually injected at L2-3, L34 or sometimes 1,4-5 space in adultsQ.', 'role': 'assistant'}]