The same themes apply to people living in very different times and places. (I think)
I'm guessing the answer will be offering 50 acres of free land to practically anyone would could pay for their own way there. or they can use it for farming. the large amounts of labd and increased availability of labor allowed for the growth of plantations
hope this helps!!
Boats and railroads were improved with the use of steam power.
They knew the land that they were fighting on and they had the high ground.
I would put C, to be honest. so that people can understand just a bit better.
