In the United States Over the Last 50 Years

In the United States over the last 50 years,

A) the labor force participation rate for women has increased to match that for women in other developed countries.
B) both women's and men's labor force participation rates have increased due to technology.
C) the change in men's labor force participation rate explains the behavior of the unemployment rate.
D) the labor force participation rate for women has increased to about 60 percent.
E) women's earning power has remained fairly constant.