Answer:
It is used to create railroads.
Explanation:
Before the invention of railroads, the only method of travelling from one state to another is by using Caravans. This was very hard to do because it could took months for traders to reach other states by using horses.
The invention of railroads allowed people to reach states at a much faster time. It connected different areas in United States and made it easier for people to distribute their product to another states.
You forgot the choices bb
Indians were a big challenge to thoose pioneers many people died and eventually reservations were made
<span>There are numerous lessons that the Progressive Era can offer about the United States and their social problems in 2017. Some of the lessons are; to educate women and minorities, to have a fair government, to have minimum wage, and they don't need to push all immigrant groups to be Americanized. Another thing that could help the social problems today is to still create fair and safe working conditions at every work site. </span>
