In 1776, an economics book titled the wealth of nationsthe world economythe success of nationsthe economic systems was published to promote the concept of free enterprise

The correct answer is the following: option a. In 1776, an economics book titled "The Wealth of Nations" was first published to promote the concept of free enterprise. Written by Adam Smith, a philosopher and economist born in Scotland, "An inquiry into the Nature and causes of the Wealth of Nations" was a recollection of the different reasons on why nations have wealth. The book touches upon different topics such as the division of labor, the industrial revolution and the defense of the free market.

d) all choices are correct

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.