The Federal Government's Spending on AFDC Fell After the Mid-1970s

The federal government's spending on AFDC fell after the mid-1970s because

A) the Supreme Court's decision in Goldberg v.Kelly prohibited more than 15 percent of the budget from being spent on welfare.
B) unlike Social Security,AFDC was not indexed to inflation.
C) fewer and fewer people needed the benefits provided by the program.
D) most state governments started refusing to accept federal money for welfare programs.
E) the program's cost-of-living adjustments were linked to real gross domestic product rather than to inflation.