Products changed from hand-made goods to machine-made goods. As it was the beginning of the now defined: industry.
The industrial revolution changed working conditions for people with the implementation of machines. Machines started to replace workers in the workplace as well as ease the workload.
In short, technology happened. Machines took over many jobs.
Good luck :)
C. Decolonization is your answer.
Note that the passage gave the phrase "Many western... nations no longer had the enthusiasm or resources..." & "...westerners believed that people had the right to self-determination & self government." This meant that they would start instituting a system of giving power to the natives while slowly taking away their influence.
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American politician and secretary of state under Andrew Jackson. He was one of Andrew Jackson's strongest allies in his official cabinet. He later became the eighth president of the United States.
It would be the 20th century.
