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': 'Clinical features of normal pressure hydrocephalus include all of the following except - \nSelect and explain. \nA. Dementia, B. Aphasia, C. Gait disturbance d) Urinary incontinence, D. Urinary incontinence', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]