Possible Reasons for the Difference in Alzheimer's Disease Risk for Non-Hispanic

Multiple Choice

Possible reasons for the difference in Alzheimer's disease risk for non-Hispanic white Americans compared with other racial and ethnic groups include all of these EXCEPT:

A) genetic factors that are linked to Alzheimer's disease.
B) differences in general health such as the presence of cardiovascular disease and diabetes.
C) differences in exposure to environmental toxins such as lead and zinc.
D) the stress brought about by language and employment barriers.