It has done this because when they have to extend a train track or the road they have to get rid of a forest that is growing just because they want more people to get around and travel. Also they have to do this because imagine of you are just driving through a forest and then a tree is leaning and then it gets in the way of the road when it falls.
I believe the answer is D: <span>the treatment of slaves by their owners
Hope I helped! :)</span>
The Democratic-Republican Party was an American political party formed by « Thomas Jefferson » and « James Madison » around 1792 to oppose the centralizing policies of the new Federalist Party run by « Alexander Hamilton », who was secretary of the treasury and chief architect of George Washington's administration.