Final answer:
Delirium is a state of acute confusion that has a onset occurs very suddenly option (D). It is characterized by symptoms such as disruptive memory loss, confusion about time or place, difficulty with planning and executing tasks, poor judgment, and personality changes.
Step-by-step explanation:
Delirium is a state of acute confusion that has a onset occurs very suddenly option (D). It is characterized by symptoms such as disruptive memory loss, confusion about time or place, difficulty with planning and executing tasks, poor judgment, and personality changes. Unlike dementia, the onset of delirium occurs very suddenly, making it important to identify and address the underlying cause promptly.