This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuroanatomy, Subject name: Anatomy
[{'content': 'Which artery is involved in Wallenberg syndrome: \nSelect and explain. \nA. A, B. B, C. C, D. D', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. DWallenberg syndrome is due to obstruction/block of posterior inferior cerebellar artery.A is Posterior cerebral arteryB is Anterior inferior cerebellar arteryC is Anterior spinal arteryD is posterior inferior cerebellar artery', 'role': 'assistant'}]