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: Medicine
[{'content': 'Hemiplegia is commonly associated with infarction of the area of distribution of the: \nSelect and explain. \nA. Anterior cerebral aery, B. Middle cerebral aery, C. Posterior cerebral aery, D. Anterior communicating aery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer is B (Middle cerebral aery): The sensory motor coex is located on the lateral surface of the cerebral hemisphere and is supplied by middle cerebral aery. Occlusion of the middle cerebral aery thus produces contrahtteral hemiplegia and contralateral hemisensory loss.', 'role': 'assistant'}]