Which of the following statements correctly describe the impact of the Northwest Ordinance of 1787?

a. It set up the process for territories to set up governments and eventually become states


b. It stopped the British from invading the Northwest Territories by threatening war


c. It established that all future states would not be equal to the original thirteen states


d. It allowed for Native Americans living in the territories to become United States citizens


e. It was one example of a major success under the Articles of Confederation