Which Statement Made by a Patient with Alzheimer's Disease Indicates

Which statement made by a patient with Alzheimer's disease indicates to the nurse the need for additional teaching?

A) "When I have been taking donepezil for 6 weeks I should regain my memories."
B) "The only way to be sure that I have Alzheimer's disease is by autopsy after I die."
C) "Even with medication, eventually I will need total care to prevent complications."
D) "The rivastigmine I am taking will slow down the progression of my symptoms."