I'm gonna go with C " It provided for quicker transport of manufactured goods which strengthened trade" Hope this helps.
In the United States, the Midwest (3) region is known for its focused on the agriculture industry, which reported sales of billions of dollars every year, especially of wheat, soybeans and corn. Also, in the Midwest you can find some cities with the biggest manufacturing industries, like Chicago. Likewise, the transportation through rivers, lakes and land gave this region an excellent condition to develop its commerce.
They discovered things like weaving, olive trees and democracy. But they were eventually invaded and enslaved by the Romans.
It was an example of a president using executive order.