At the beginning of the nineteenth century, what was the primary means for transporting goods?
canals
railroads
roads
rivers

At the beginning of the nineteenth century, the primary means for transporting goods was rivers, thus local economies were strengthened. For instance, much of the Westerner’s harvest was sent down the Ohio-Mississippi River system to the Cotton Kingdom located in the south. As a result the river provided a natural highway for western commerce in the nineteenth century.

The answer is D. Rivers

(d) take jobs from american workers.