Which of the Following Is NOT Discussed in the Text

Which of the following is NOT discussed in the text as a consequence of social class difference in the U.S.?

A) People with incomes below $7,500 per year are four times as likely to be victims of violent crime as people with incomes higher than $75,000 per year.
B) People from the middle class are much more likely to be overweight than members of the working class.
C) Students from poor and working-class homes are more likely to drop out of college than middle-class students.
D) Infants born to mothers with college degrees are less than half as likely to die before their first birthday as those born to high school drop-outs.