In General Terms, Which of the Following Statements Regarding Changes

In general terms, which of the following statements regarding changes in income inequality in the United States is correct?

A) Inequality has increased substantially over the last 40 years as witnessed by the Gini coefficient increasing from about 0.1 in 1970 to over 0.7 in 2010.
B) Inequality has increased slightly over the last 40 years as witnessed by the Gini coefficient increasing from below 0.4 in 1970 to over 0.45 in 2010.
C) Inequality has decreased substantially over the last 40 years as witnessed by the Gini coefficient decreasing from about 0.5 in 1970 to almost 0.05 in 2010.
D) Inequality has decreased substantially over the last 40 years as witnessed by the Gini coefficient decreasing from about 0.8 in 1970 to just over 0.25 in 2010.
E) Inequality has stayed about the same over the last 40 years as witnessed by a Gini coefficient that has hovered around 0.6.