Which of these changes took place in the first two decades of the 20th century?
a. the united states went from being a net exporter to being a net importer.
b. the industrial workforce went from minority unionized to majority unionized.
c. the majority of the u. s. population lived in urban areas instead of rural areas.
d. the u. s. government moved from running a budget surplus to running a budget deficit.

The correct answer is C. In the first two decades of the 20th century the rural population of the United States started to move into the cities, as the increasing industrialization generated more and better jobs in the industrial sector rather than the rural ones.

During that period there have been events such as the Great Migration, which involved African-Americans moving from the rural Southern states to the industrial cities in the north of the United States.

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