The rail line crossed long-established Native American trails and disturbed buffalo-hunting grounds.
<span>the north developed an industrial economy that didn't need slaves</span>
The third alternative is correct (C).
Each American state has the autonomy of its electoral process, so it is natural that different practices are observed.
During the primary elections in the US, eight states reserve dates for a possible second round if none of the candidates reaches the required percentage of votes. They are Alabama, Arkansas, Georgia, Louisiana, Mississippi, Oklahoma, South Carolina and Tennessee.
I think it is the r<span>ed-capped manakin</span>
