Question

which of the following is a predisposing factor for alzheimers disease?
a. heredity
b. sex
c. lifestyle
d. age

Explanation:

Alzheimer's disease has a significant genetic component. Heredity (having a family history, especially with specific genes like APP, PSEN1, PSEN2, or APOE - ε4) is a well - known predisposing factor. Sex is not a strong predisposing factor, lifestyle is a contributing factor but not a primary predisposing factor like heredity, and age is a risk factor (prevalence increases with age) but heredity is a more direct predisposing factor related to genetic susceptibility.

Answer:

a. heredity