One of the interesting conclusions that Professor Olsen makes in Chapter One "The First Americans" is that: A.) the Ethnocentrism of Europeans did not guarantee conflict.

B.) the tensions between Europeans and Native Americans is overemphasized.

C.) the presence of White Europeans never resulted in Native American acculturation.

D.) on the eve of colonization there were very few Native Americans living in what is now called the United States.​

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.

it proved indian land claims were unjustified.