During the twentieth century, the share of the U.S. labor force engaged in mining, manufacturing, and construction
A) decreased from about 40 percent to about 25 percent.
B) decreased from about 55 percent to about 40 percent.
C) increased from about 25 percent to about 40 percent.
D) increased from about 20 percent to about 45 percent.

Question

Quizplus · Accepted Answer

The share of the U.S. labor force engaged in mining, manufacturing, and construction decreased over the twentieth century, reflecting the shift towards a service-oriented economy.

During the Twentieth Century, the Share of the U