Using the Lorenz Curve, the Degree of Income Inequality Is

Using the Lorenz curve, the degree of income inequality is measured by the:

A) line connecting all points for which a given percentage of families receives exactly that cumulative percentage of income.
B) distance of the Lorenz curve from the line of perfect equality.
C) flat diagonal line that applies to a perfectly elastic demand curve.
D) number of times the Lorenz curve crosses the line of perfect equality.