Restricting immigrants from entering a country may be based on what belief?

a. an economy can support unlimited numbers of people.
b. the "push" factors justify most immigration.
c. immigrants enrich the culture of a country.
d. a country has a limited number of jobs and services.
e. a government should not interfere with the migration of people.

B. The "push" factors justify most immigration.

The "push" factors justify most immigration.Migration is the movement of people from one place to another as they seek a new home. Famine, overpopulation, limited resources, war, and religious and political persecution "push" immigrants to move to another country. Hopes for employment and a better life "pull" immigrants to new places. Millions have migrated to North America since the 1600s. Spanish, French, English, and Dutch immigrants were the first European settlers to establish permanent colonies. They settled in lands originally populated by people from Asia. Many people from Africa were driven from their homes at this time to be enslaved to work in colonies in the Americas. Throughout the 1800s, immigrants looking for employment came to North America from Japan, China, and southeastern Europe. In the 1970s and 1980s, Southeast Asians, Latin Americans, and Caribbeans migrated to North America. Many of these immigrants fled from war-torn countries, political persecution, and economic difficulties.