Today, more immigrants come to the United States from Asia and . This change is partly due to the Immigration and Naturalization Act of 1965, which quotas. Each year, the United States accepts about refugees. In addition, about undocumented workers are living in the United States illegally.

The sentence contrasts the current sources of immigration with the earlier pattern, when many immigrants came from Europe. Today, many immigrants come from Asia and Latin America. The Immigration and Naturalization Act of 1965 changed the quota system, allowing immigration from a wider range of countries. Therefore, the correct choice is Latin America.

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