Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a. automobile b. highway c. railroad d. steamboat

Railroad due to the time period this question is based off of

I believe your answer would be C. Railroad. Although steamboats were first invented in 1787 and the railroads were built for the first time in 1794 (the first fully working railway was built in the UK during 1904by Richard Trevithick), the railroads had a larger impact on the destruction of the original ways of Native American life.

Im migration prohibition.