During the first century of United States history, what drove the westward movement of settlers? Group of answer choices

Americans' desire for land to farm

Americans' need for more and larger ocean ports

the expanding American lumber industry

the transcontinental railroad

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.