Answer;
C. a common language.
In the 1800s, an important motivation for both "old" and "new" immigrants to settle in ethnic neighborhoods was a common language.
Explanation;
The old immigrants came from the northern or western Europe while the new immigrants came from southern or eastern Europe.
Old immigrants were protestant while the new immigrants were Catholic , Orthodox or Jewish.
The Civilian Conservation Corps (CCC)
Establish the nation’s financial credibility
They didn't know how to live as a free woman or man, because they were used to being a slave. ~
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The Romans, as well as the middle eastern, such as the Ottomans and the Turks.