A 68-year-old female presented with a 2-year history of impaired memory, irritability, and self-neglect. A

A 68-year-old female presented with a 2-year history of impaired memory, irritability, and self-neglect. A

physical examination reveals psychomotor agitation and short term memory loss. She has been unable to drive or bathe herself for the last year and requires daily assistance for her basic needs. On examination, her Mini-Mental Status Examination score is 12. What is the most likely diagnosis?

A Dementia

B Depression

C Schizophrenia

D Delirium

E Mania