How did the transcontinental railroad affect us trade? a. the railroad did not affect trade in the united states. b. the railroad increased trade by making shipping cheaper. c. the railroad hurt trade by causing corruption in business. d. the railroad fostered trade relations with american indians.

The correct answer is B. The railroad increased trade by making shipping cheaper.

The Transcontinental Railroad had a huge positive impact on the economy in that it allowed for the transportation of goods over long distances. It was also important in unifying the nation at at time when it was still divided due to the Civil War

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