An older adult patient takes multiple medications daily. Over 2 days, the patient developed confusion, slurred speech, an unsteady galt, and fluctuating levels of orientation. These findings are most characteristics of

A. This involves memory loss due to brain injury or alcohol abuse, not acute fluctuating confusion. B. Alzheimer’s causes progressive, irreversible memory decline that develops gradually, not suddenly over 2 days. C. Delirium is characterized by acute onset, fluctuating levels of orientation, confusion, speech changes, and impaired gait, often triggered by medications, infections, or metabolic issues. D. Dementia develops slowly and progressively, not suddenly like delirium.