The operating machine my guy
B, the Treaty of Versailles. The other answers refer to WW2
“ The rebels promised to provide laborers to help the United States build Panama Canal. “
Answer:
C
Explanation:
they collectively (as a union) bargained for wage increase. B and D could have been two points they used in said meeting, but that is not what the question asked
<span>The 19th century was a period of great change and rapid industrialization. The iron and steel industry spawned new construction materials, the railroads connected the country and the discovery of oil provided a new source of fuel. The discovery of the Spindletop geyser in 1901 drove huge growth in the oil industry. Within a year, more than 1,500 oil companies had been chartered, and oil became the dominant fuel of the 20th century and an integral part of the American economy.</span>
