According to economists, which of the following statements is true? A. Countries should devote their resources to producing products that they produce best.
B. Countries should devote their resources to producing products that they produce better than other countries.
C. Countries should not worry about other countries when it comes to determining what they are going to produce.
D. None of the above statements is true.

the answer is option a.

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.

the stamp act was passed by the british parliament on march 22, 1765. the new tax was imposed on all american colonists and required them to pay a tax on every piece of printed paper they used. ship's papers, legal documents, licenses, newspapers, other publications, and even playing cards were taxed.