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: Anatomy
[{'content': 'Root value ofsciatic nerve \nSelect and explain. \nA. SIS2S3, B. L4L5SlS2S3, C. L2L3L4, D. L1L2L3', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B.L4L5SlS2S3Root value of sciatic nerve is L4L5S1 S2S3', 'role': 'assistant'}]