In the United States, the dramatic increase in government social spending since the mid-1960s has:

a. not greatly increased the money income share of the poorest fraction of the population.

b. made the distribution of income more unequal in the economy.

c. brought about equality in the distribution of income in the economy.

d. decreased the percentage of families in the lowest fifth.

e. greatly increased the money income share of the richest fraction of the population.