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 sympathetic fibres of uterus are derived from which segments of veibrae ? \nSelect and explain. \nA. T12 - L1, B. T11 - L2, C. T1 - S2, D. T12 - L2', 'role': 'user'}, {'content': "Answer: D \nExplanation: Sympathetic nerves from T12, LI segment of spinal cord produce uterine contraction and vasoconstriction. The parasympathetic nerves (S2, S3, S4) produce uterine inhibition and vasodilatation. Ref : B D Chaurasia's Human Anatomy , seventh edition , volume 2 , pg.no., 422.", 'role': 'assistant'}]