Which of the following best explains how the Northwest Ordinance of 1787 had an impact on westward expansion in the United States?
It allowed territories to decide on the issue of slavery by popular sovereignty.
It established procedures for how territories could become states.
It prohibited slavery in all newly acquired territories.
It granted women the right to vote new territories.
The best option from the list would be that "It established procedures for how territories could become states," since this set a precedent for all the future states to become integrated into the Union.
