Respuesta :
The correct answer is - 2) The country was trying to maintain a uniform population.
In the period between 1920 and 1960 the immigration policies of the United States were tightened and stricter, and the immigration was selective. In this period, white people from the European continent were favored and allowed to migrate into the United States, while black people and Asians were not allowed to immigrate into the country. This was with the purpose of maintaining a uniform population in the country.
The change in U.S. immigration policy from 1920 to the 1960s showed that 1) The country was becoming more open to diversity any quality.
How did U.S. immigration policy change over those years?
In the 1920s, there was a call for the U.S. to limit immigration which led to the U.S. preventing immigration from certain places in the world.
Over the years, this policy changed to allow for more people of various nations to come into the United States. This showed that the U.S. was open to diversity as the 1960s came around.
In conclusion, option A is correct.
Find out more on the immigration policy at https://brainly.com/question/899065.