Which of the following is true about immigration ?

1) immigrants are only allowed to enter countries if their hometown is overly populated
2) immigrants are not allowed to enter developed nations
3) immigrants come from variety of countries
4) immigration has greatly slowed in the past 100 years

How has the elimination of trade barriers affected the movement of goods among member countries of the european union? a. member countries are able to produce all the goods they need. b. goods can move freely among member countries. c. member countries no longer need to trade with countries outside the eu. d. larger countries are able to import more goods than smaller ones.