In the 20th century, the urban population of the US country increased rapidly because of the emergence of the Industrial revolution.
Option C is the correct answer.
What is the urban population?
The urban population is referred to the people who are residing in the urban cities and towns.
During the Industrial revolution, the dependence on machinery for manufacturing was increased due to which the need for more labor requirements arose. The people of other countries moved to the US country in search of jobs which increased the population in urban areas at a faster pace.
Therefore, the explanation provided in part C was the reason for the increased urban population in the US country.
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