試題詳解

9. Which of the following trends has been observed in the world population in terms of aging?
(A) As nations have advanced economically, birthrates have increased in proportion to the growing world population.
(B) People aged 65 and older will soon outnumber children under age 5 for the first time in history.
(C) The world's population is growing older, but at a slower rate than it did in comparison with the previous two centuries.
(D) The world's population aged 80 and over is projected to decrease 233% by 2040.