Problem: What effect did Congress' 1965 decision to lift tight immigration restrictions have on immigration in the United States? Group of answer choices It decreased the foreign-born population among all groups except those from Asia. It had little effect on foreign-born population as the immigration process remained too complicated for most. It led to a large influx of undocumented immigrants who are now eligible for all public benefits and services. It profoundly increased the country's diversity with more than half of Americans under age 16 identified as a member of a racial or ethnic minority group.