Which of the Following Should the Nurse Use as a Basis

Which of the following should the nurse use as a basis for explaining the etiology of Alzheimer's disease to the family of a patient with this disease?

A) It is a secondary dementia indicated by loss of recent memory and disorientation to time and place.
B) It is a primary dementia that is incurable, irreversible, and fatal. It is caused by the presence of a beta-amyloid protein in the neurons resulting in senile plaques.
C) It is a secondary dementia that is treatable with analysis of the diet and removal of toxic substances from the diet and environment.
D) It is a primary dementia characterized by stepwise decreases in cognitive abilities. It is irreversible but treatable with antihypertensive medications.