This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nerves of Abdomen, Subject name: Anatomy
[{'content': 'Spinal cord and nerve roots are supplied by - \nSelect and explain. \nA. Anterior spinal artery, B. Posterior spinal artery, C. Ascending cervical artery, D. All of the above', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., All of the above", 'role': 'assistant'}]