How has immigration policy changed over time?

Question

O A. Since 1965, the U.S eliminated quotas based on national origin.
O B. Since 1965, immigration restrictions were lifted.
O C. Since 1800, the U.S prohibited banning immigrants from certain countries.
O D. Since 2000, Congress has tightened citizenship requirements.

Answer 1

A. Since 1965, the U.S eliminated quotas based on national origin.