The Ratio of Workers to Social Security Beneficiaries Has Declined

The ratio of workers to social security beneficiaries has declined from 16.5 in 1950 to about 3 in 2010 and is expected to decline to 2 by 2030.This trend indicates that:

A) the surplus generated from the social security fund is going to increase over time.
B) the revenue generated by the government from the social taxes is going to decline by 2030.
C) the strength of the U.S.labor force will shrink over time.
D) the social security contributions will fall short of the social security payments over time.
E) the number of retirees will gradually decline and the youth employment in the economy will increase.