Answer:
Mexico
Explanation:
Because the railroads were built along the continent of North and South America, Mexico was able to be accessible to trade for most trade areas in the continents
To suppress black republican voters and poor white republicans from being able to register to vote which pretty much eliminated the republican party in the south for decades and the democrats gained one party control through the southern states.
Force some workers to bring their own supplies
B is the right answer
I think the answer is A too
