The transcontinental railroad was a key role in the industrial revolution because it was the only way for supplies to get from one part of the country to the other. The train was also the fastest mode of transportation at the time so it was also important for travel. I hope this helped.
I believe the answer to your question would be A. Western European Capitalistic Country, Hope this helps a bunch :)
There has been a debate about border control. Donald Trump wants to take action through buidling a wall along the border but the democrats do not want this. This creates a policy gridlock, where no policy is passed due to each party not wanting the other party to get its way.
B. Florida became a U.S. territory
The correct answer is "D": The establishment of the Environmental Protection Agency
I just took the test and got 100% Hope this helps