Chariots and Iron were mastered (I think)
They started to plant tobacco which they got very famous and other cash crops
The Arrival of Railroads
A Railroad is like a Transport of things like a train. you can transport people from place to place with railroads or you can transport supplies
Hope this helps
The Democratic-Republican party was founded based on <span>Thomas Jefferson's leadership and the Anti-Federalist ideology</span>. The answer to your question is A. I hope that this is the answer that you were looking for and it has helped you.