Among the factors accounting for the rapid build-up of the Social Security trust fund is:
A. a significant increase in fertility rates resulting in an increase in the size of the labor force.
B. a significant fall in fertility rates.
C. a decrease in the number of people who are self-employed.
D. a large increase in the labor force due to the entrance of baby-boomers.
Answer:D
Among the factors accounting for the rapid build-up of the Social Security trust fund is:
A. a significant increase in fertility rates resulting in an increase in the size of the labor force. B. a significant fall in fertility rates. C. a decrease in the number of people who are self-employed. D. a large increase in the labor force due to the entrance of baby-boomers.