Which of the following was a result of immigration from Europe being cut off during the war?

A. Most immigrants to the U.S. now came from Asia.
B. Native-born Americans became less hostile toward immigrants.
C. Submarine warfare prevented would-be immigrants from leaving their countries.
D. African Americans left the South in large numbers to work in war-related industries.

The result of immigration from Europe being cut off during the war was that most immigrants to the U.S. now came from Asia. With the halt in European immigration, the need for workers in the U.S. was still present, leading to a shift towards recruiting African Americans from the South for industrial jobs.

Additionally, the consequences included competition over jobs and the increasing segregation among ethnic lines, as native-born Americans and new immigrants vied for employment in cities.

Furthermore, national legislation set quotas to regulate immigration and maintain the racial and ethnic balance of the country, shaping the demographic landscape of the United States.

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