Question

why is uncle sam holding a sign that reads \3% at the gate\? *
10 points
the percentage of people the ku klux klan wanted to prevent from voting
the goal of the eugenics movement to prevent undesirable people from reproducing.
the immigration quota that limited the entry of southern and eastern europeans into the u.s.
the belief that all races and people were not equal, as stated by social darwinism.

Explanation:

The Immigration Act of 1924 (Johnson - Reed Act) established immigration quotas. The quota system was based on the 1890 census, which was used to limit the entry of southern and eastern Europeans. The "3% at the Gate" sign refers to the 3% quota (later changed to 2% in 1929) that restricted the number of immigrants from certain regions. This was a form of nativism and aimed to preserve the ethnic composition of the United States as it was perceived before the large - scale immigration from southern and eastern Europe.

Answer:

The immigration quota that limited the entry of southern and eastern Europeans into the U.S.