Answer:
Correct answer is C. It made it clear that people living in U.S. territories had the same rights as people living in established states.
Explanation:
Option A is not correct as although slavery was prohibited in this Northwestern territories, that didn't meant that some new territories that were to enter United States had to prohibit slavery.
Option B is also not correct as states in these area were created a couple of years after the Ordinance was declared.
Option C is correct as the document stress out that all states would be equal in their rights.
Option D is not correct as the Ordinance has a bad effect on the Natives.
The opportunity cost is the opportunity that presents itself at the time of purchase.
<h3>What is opportunity cost?</h3>
This is a concept in the field of economics that is used to show the value that a person misses out due to the fact that they missed out on an option.
It is the cost of choosing one good over another. The value missed out from the good that was not chosen is the opportunity cost.
Read more on opportunity cost here:brainly.com/question/1549591