1) Fulton's Folly: It was a steamboat by Robert Fulton. He did not invent it as some credited him for, but he was the first to make a commercial success out of it. The boat carried paying passengers from New York up to Albany.
2) Tom Thumb: The Tom Thumb was a steam locomotive that was used to showcase the American potential to create engine to Baltimore and Ohio Railroad.
3) The airplane: The airplane was a success, it was first used in WWI for combat, later people started to use it to transport mail. In WWII it was used as a mode of transportation. Later it was transformed as a common way of transport for all the people.
4) The Model T: The Model T was a car that was produced by Ford Motors. It was very common because it’s price and because of this middle-class Americans were able to buy it and use it was a way of transport.
The Ordinance of 1785 put the 1784 resolution in operation by providing a mechanism for selling and settling the land, while the Northwest Ordinance of 1787 addressed political needs. The 1785 ordinance laid the foundations of land policy until passage of the Homestead Act in 1862.
so the answer is b
hope this helps
the articles of confederation was a very weak constitution for the government
The main reason why Congress worked to keep a balance between the number of slaveholding states and free states is because they wanted to avoid war breaking out between the North and the South. They tried to do this through a series of compromises that ultimately failed.