One of the weaknesses of the articles of confederation was that there was no national court system to settle disputes between states. the constitution fixed this problem by a. setting up a vote in congress to decide the winner in state disputes b. giving congress the power to regulate trade between the states c. giving power to execute the law to the president of the united states of america d. establishing the supreme court as the highest court in the nation

i can

explanation:

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.