In 2015, the 20 Percent of Families with the Lowest

In 2015, the 20 percent of families with the lowest incomes paid an effective average federal tax rate (on all federal taxes) of about ____, whereas the 20 percent of families with the highest incomes paid an effective average tax rate of about ____.

A) 5.5 percent; 50 percent
B) 1.9 percent; 33.3 percent
C) 8.4 percent; 27.5 percent
D) 1.5 percent; 26.7 percent