This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen and pelvis, Subject name: Anatomy
[{'content': 'The duodenum lies at which of the following level of veebrae ? \nSelect and explain. \nA. L1, L2,L3, B. L3, L4, L5, C. L2, L3, L4, D. L5, S1, S2', 'role': 'user'}, {'content': "Answer: A \nExplanation: The duodenum lies above the level of the umbilicus, opposite first, second and third lumbar veebrae. Ref : B D Chaurasia's Human Anatomy , volume 2 , pg. no., 285.", 'role': 'assistant'}]