Map of the U S showing Foreign-Born Groups: 2000. The key legend groups are Canada, Western Europe, Asia and Middle East, Latin America, Russia and Eastern Europe, Africa. Image by Education2020

The above map shows the largest immigrant group in each US county in 2000. According to the information on the map, which groups have dominated recent immigration to the United States?
A.
immigrants from Africa
B.
immigrants from Asia and Latin America
C.
immigrants from Western and Eastern Europe
D.
immigrants from Russia and Canada