How did the federal government encourage and facilitate the construction of thousands of miles of railroad tracks throughout the west

It is known that the American westward movement has occurred with settlements of intermittent flurries. Pioneers or the settlers of the west as they are called usually migrated together with or as families and settled in the rivers of the West. However, due to the rivalry between the West and the East, both have not tried migrating into the same place.

During the 19th century, the federal government encouraged the western expansion by land grants. The settlers were granted with a 160-acre land in the west given that this land can be farmed for six months. Other than that, this land can also be bought by a dollar and 25 cents per acre. It was quite unconventional for the few farmers to go with the latter option, but still, many land speculators did. Because of this, there are thousands of acres of homestead land that were purchased by speculators. 

the first historical instance of china engaging in internationalism was during the han dynasty.[1] at the start of the han dynasty, the huns in the north were attacking the frontiers of han and trying to obtain riches. emperor wu of han wanted to gain an alliance with a country called dayuezhi so the two countries could join together and fight against the huns.[2] to obtain this alliance, emperor wu sent zhang qian to the west to establish economic and cultural connections.[2] history records that during the han dynasty there were four primary avenues of contact between china and europe. they included the northern land route, the central land route, the southern sea route, and the far southern sea route.[1] the most famous of these routes is the central land route, or the classical silk road, comprising a network of roads stretching from northwest china to the ports of syria and the black sea, which passed through the oasis of the turkestans and northern persia.[1] the silk road was significant for chinese emperors because it provided dominance over central asia by developing resources and provided new markets for the export of china's most valuable resources.[1]

answer: the correct answer is d. a christian revivalist movement in the u.s. during the early 19th century

explanation: the second great awakening was lead by the preachers of baptist and methodist congregations in order to gain support for the protestant religion from the 1790's to 1840's