What foreign policy did the truman doctrine stand for during the post-world war ii years?
a.) the united states would come to the aid of any communist nation that wanted to switch to a democratic system.
b.) the united states would aid all free nations struggling against communism.
c.) the united states would not involve itself in european affairs as long as europe stayed out of the americas.
d.) the united states would give financial aid to any nation regardless of its form of government.

the answer is c.richard m. nixon

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.