Most accurate would be the second choice as it addresses the US Goverment. If I'm incorrect please do let me know :) I'd look for a second source of this information though.
Answer:
They divided the states into different time zones.
Explanation:
As trains left to go to locations, it would be later or earlier depending on which direction they went, so take for example a train going from New York to Seattle. It would probably be a couple ahead of New York.
Answer: he avoided slavery and just promised to keep the union together
Explanation:
