Question

question 3 of 10
what is meant by the phrase \the graying of america\?
a. the cost of medical care in the united states has remained constant.
b. americans are having children at an older age.
c. the size of the average american family has decreased.
d. life expectancy has increased in the united states

Explanation:

"The graying of America" refers to the demographic trend where the proportion of older people in the population is increasing. This is mainly due to factors like increased life expectancy. Option A is about medical - care cost (not directly related to population aging). Option B is about child - bearing age (not the core of population aging). Option C is about family size (not relevant to the aging of the overall population). Option D, increased life expectancy, is a key factor contributing to the aging of the population (graying of America).

Answer:

D. Life expectancy has increased in the United States