Final answer:
Ellis Island was an immigration processing center and played a part in the creation of the Emergency Quota Act, which established numerical limits on immigration based on quotas.
Step-by-step explanation:
Ellis Island was an immigration processing center that operated from 1892 to 1954. In its busy years, it saw over 12 million immigrants seeking new lives in the United States pass through its doors. The sheer volume of immigrants and the desire to filter those entering led to the creation of more structured immigration laws.
The Emergency Quota Act of 1921 and the National Origins Act of 1924 were direct outcomes of the complex interplay of increased immigration, prevailing nativist attitudes, and economic concerns post-World War I.
These pieces of legislation sought to set numerical limits to the influx of immigrants based on a quota system calculated from U.S. census data, essentially restricting immigration from Southern and Eastern Europe, as well as from Asia.
The correct answer to the initial question is: C) Ellis Island was an immigration processing center. It led to the creation of immigration quotas.