Answer:
the answer is number 3 ur welcome
Answer: The theory defines the relationship between the price of a given good or product and the willingness of people to either buy or sell it. Generally, as price increases, people are willing to supply more and demand less and vice versa when the price falls.
Explanation:
Provided railroad companies land free of charge.
In order to help expand railroads throughout the country after the civil war, congress made railroads expand significantly; bringing even remote parts of the country into a national market economy.
Confederation, I guess. European Union for example