This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brain , Subject name: Anatomy
[{'content': 'POSTERIOR COMMUNICATING aery is a branch of \nSelect and explain. \nA. Veebral aery, B. Internal carotid aery, C. External carotid aery, D. Basillary aery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Posterior communicating aery is a branch of cerebral pa of internal carotid aery. It arises close to its termination. It runs backwards and anastomoses with proximal pa of posterior cerebral aery.Reference: Textbook of anatomy, Head neck, and brain, Vishram Singh, 2nd edition, page no.406', 'role': 'assistant'}]