Which of the following factors has negatively impacted the viability o

Which of the following factors has negatively impacted the viability of the pay-as-you-go Social Security system?

a. Each generation is living longer and thus collecting more benefits.
b. The “baby boom” after WWII greatly increases the number of retirees in the first few decades of this century.
c. Individuals are having fewer children today.
d. all of the above
e. a and b

ANSWER

d