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': 'Which vessel causes Wallenburgs syndrome is: \nSelect and explain. \nA. Pontine, B. Posterior Cerebral, C. Posterior inferior cerebellar aery, D. Veebral aery', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Posterior inferior cerebellar aery', 'role': 'assistant'}]