It is estimated that at least __________ percent of dementias are due exclusively to __________.

Question

Quizplus · Accepted Answer

According to the given options, the highest percentage of dementias due exclusively to a single cause is 50%, which is associated with Alzheimer's disease. Therefore, option D is the best choice. Options A and E are too low and too high, respectively. Option B refers to vascular insults, which contribute to the development of some types of dementia but not exclusively. Option C is too low for Alzheimer's disease but too high for vascular insults.

It Is Estimated That at Least __________ Percent of Dementias