How/why is the immigration from 1879-1920 important?

One impact was that the presence of immigrants led to laws to restrict immigration to the United States, especially from South and East Europe. ... Anti-immigrant groups, such as the Ku Klux Klan, also formed and grew in popularity in the 1920s. Immigrants also contributed to the economic growth of the United States.

Explanation:

One impact was that the presence of immigrants led to laws to restrict immigration to the United States, especially from South and East Europe. ... Anti-immigrant groups, such as the Ku Klux Klan, also formed and grew in popularity in the 1920s. Immigrants also contributed to the economic growth of the United States.

sonar maybe? ? i dont know the choices

c)an idealized view of nature. hope this