This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Radiology
[{'content': 'Binswanger disease refers to? \nSelect and explain. \nA. Subcortical arteriosclerotic encephalopathy, B. Hippocampal atrophy, C. Multiple cortical infarcts, D. Extrapyramidal dementia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans ABinswanger disease is also known as subcortical leukoencephalopathy and subcortical arteriosclerotic encephalopathy. It is small vessel ischemia related dementia caused commonly by chronic hypertension or old age.', 'role': 'assistant'}]