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': 'Blood supply of medial surface of cerebral hemispheres is from? \nSelect and explain. \nA. Anterior cerebral aery, B. Posterior cerebral aery, C. Middle cerebral aery, D. Veebral aery', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Most of the medial surface of brain is supplied by anterior cerebral aery except * temporal pole- middle cerebral aery * occipital lobe- posterior cerebral aery (Ref: vishram singh textbook of clinical neuroanatomy ,second edition of pg-178)', 'role': 'assistant'}]