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: Psychiatry
[{'content': "Which ONE feature could help to differenciate Alzheimer's Dementia from Delirium in a 70 year old man with Urinary Tract Infection? \nSelect and explain. \nA. Memory Disturbances, B. Apraxia, C. Delusion, D. Delusion", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Delirium is broadly defined as an acute decline in attention and cognition. It is characterized by altered sensorium, confusion, stupor, and fluctuations of consciousness. Dementia is defined as a progressive impairment of cognitive functions occurring in clear consciousness (i.e. in the absence of delirium).', 'role': 'assistant'}]