How has immigration to the US changed since the 1920s? (Countries of origin, push/pull factors, politics of immigration.

Immigration in the 1920s is different than it is today because in the 1920s less people immigrated to different locations because they did not have knowledge on where to go or why they even would go. Another reason it would have changed since the 1920's is because the world population has not been the same after the 20s and now there are more people immigrating into different parts of the world.

Explanation:

the answer is a) high entry costs

if i am correct the answer is going to be a) the federal program of reconstruction ended.