Which of the following is true about the distribution of income in the

Which of the following is true about the distribution of income in the U.S. in the last three decades?

A) For much of this period real wages paid to college graduates have risen significantly.
B) Real wages paid to blue-collar workers have grown only slightly.
C) There has been a shift in the distribution in income across various segments of the economy, with the real earnings of the richest in America rising to record levels.
D) All of the above are true.

ANSWER

D