The answer is B. I think.
Answer:
For a small minority of workers, the Second Industrial Revolution introduced white-collar jobs and growth in the middle class. Though it took very little skill to operate a machine, it took a lot of skill to design or fabricate a machine, and many foremen and managers were also needed to oversee production.
C. rare and costly dark stone
Congressman Jack Kemp was critical of President Ronald Reagan's early economic policies. Kemp felt that there was, under Reagan, an unreasonable tax on labor. Over time, Kemp and Reagan began to see eye to eye on economic issues, and revised the tax code - so it encouraged labor over machinery - in accordance.
The French explorer Pedro Vial pioneered the route in 1792 and the Santa Fe Trail<span>was established in 1821 to </span>take<span> advantage of new trade opportunities with Mexico which had just won independence from Spain in the Mexican War of Independence.</span>