From 1980 to 2009, the Black-White Wage Ratio for Males

From 1980 to 2009, the black-white wage ratio for males in the United States

A) held constant at about 0.7.
B) fell steadily from about 1.0 in 1980 to 0.5 in 2009.
C) increased modestly from 0.7 in 1980 to about 0.8 in 2009.
D) increased substantially from under 0.5 in 1980 to almost 1.0 in 2009.
E) increased substantially from 0.4 in 1980 to over 0.8 in 2009.