Answer:
A. Introduction of women and children into the labor force
Explanation:
The Industrial Revolution transformed economies that had been based on agriculture and handicrafts into economies based on large-scale industry, mechanized manufacturing, and the factory system. New machines, new power sources, and new ways of organizing work made existing industries more productive and efficient.
The answer is C, the treaty did not specify anything about slavery.
The Roosevelt Corollary in 1904 justfited US intervention in the Western Hemisphere. It was an addition to the Monroe Doctrine which had wanted to prevent European intervention in the West.
-The Cold War: Both the United States and the Soviet Union emerged as superpowers, but with different ideologies. This led to a long "Cold War," which also was the cause of several proxy wars all over the world in the following decades.
-founding of United Nations in the place of the League of Nations.
-Territorial changes of Germany, Poland and some other countries: Germany lost big parts of land, Poland was "moved" west