Which of the following is an example of how nationalism influenced the united states after the war of 1812? a. beginning the building of the national road. b. passing the northwest ordinance. c. signing the treaty of fort jackson. d. imposing tariffs on foreign goods

The answer is letter C. The signing of Treaty of Fort Jackson

This treaty was signed after the defeat of the Red Sticks in the Upper Creek. The treaty allowed the government to cede more than 20 million acres of land of the Native Americans in the  United States.

b is the answer i am assuming