Persia was no longer the great power it once had been
<span>The Independent Democrats and many northern Whigs abandoned their affiliations for the new antislavery Republican party, leaving southern Whigs without party links and creating an issue over which the already deeply divided Democrats would split even more.</span>
In the late 1800s, the growth of the railroad led to Midwestern cities like Minneapolis and Cleveland becoming industrial centers. The Midwest soon become a leading center of industry in the late 1800s. With immigrants coming in, half of them went to the Midwest to look for a job in the factories.
The answer to your question would be B
