Answer the following question given this paragraph: 

One useful application of PET scanning is in the diagnosis of Alzheimer’s disease. This debilitating condition associated with memory loss primarily occurs in elderly individuals. A protein known as beta-amyloid gradually forms deposits, or plaques, in the brain. Severe memory loss and impaired movement appear to be direct results of the plaque growth.


Q: Alzheimers disease is associated with memory loss in what group of people?

 Choices:

- juveniles

- prehistoric

- immigrants

- elderly

A:
elderly
