Between 1980 and 2005, Average Family Incomes

Between 1980 and 2005, average family incomes

A) remained constant for the wealthiest twenty percent of the population.
B) grew at all income levels.
C) fell for middle-class families.
D) increased for middle-class families, but fell for the wealthiest twenty percent.
E) declined for the poorest twenty percent of the population.