Which of the Following Was the Most Significant Change in the U.S

Multiple Choice

Which of the following was the most significant change in the U.S. labor force during the last half of the twentieth century?

A) substantial decreases in the number of workers who are under 55
B) increases in the percentage of U.S. citizens of Hispanic origin
C) the increasing number of African-Americans at all levels within the workforce
D) the steady increase in the percentage of employed males
E) the rapid increase in the number of female workers