The answer is: shifting from an agrarian lifestyle to an urban lifestyle.
Answer : As the US expanded after the Revolutionary War, the Northwest Ordinance of 1787 helped organize the new territories and set up the steps each territory needed to take in order to become a state. It is interesting to note that the Northwest Ordinance outlawed slavery in the Northwest Territory.
Explanation: HOPE THIS HELPS
There aren’t any options but I assume the answers are: mapmaking, compasses, and square sails.
I believe A. I am not 100% sure but that is my best guess.