How did transportation affect industry and agriculture in the early ni

How did transportation affect industry and agriculture in the early nineteenth century?

a. Improved land and water transportation changed the United States from an agricultural to an industrial society.
b. Improved land and water transportation allowed the United States to develop more industry and create a cash crop agricultural system.
c. Developments in land and water transportation were slow, so the United States remained an agricultural society with virtually no industry.
d. Because land transportation was so poor, water transportation caused industry and agriculture to be confined to the East coast.
e. Because water transportation was cheaper than land transportation, industry soon replaced agriculture in the United States.

ANSWER
B