The “graying of the united states” refers to
the increasing percentage of the population over sixty-five years old
faster aging due to stress
dissatisfaction with retirement plans
increased health problems such as alzheimer’s

The correct answer is A

Explanation:

The term 'graying of the United States' refers to the fact that the U.S. population is getting older and consisting of more elderly citizens than ever before.

People aged 50 and over comprise 24% of the U.S. population today and the number is growing. There are not enough babies being born to reverse the situation, more elderly people means less young people working and paying taxes.

The government sponsored health programs will suffer in the long term as there won't be enough money coming in to cater for all the retired people.

answer; aristotle;

answer; vygtosky's theory;