Answer :
The only one that has something directly associated to better transport lines: increased settlements in the West :)
A direct result of the growth of the railroad industry was the increased settlement to the West.
The railroads in the West brought about migration of Americans and settlers towards the end of the 19th century.
People were able to get cheap land for agricultural purposes, and also for ranching. The government through the Homestead act helped people to acquire land.
The government also granted land to railroad companies as a way of encouraging the growth in trade and transportation in the area.
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