Which amendment to the constitution prohibited poll taxes? the fifteenth amendment the nineteenth amendment the twenty-third amendment the twenty-fourth amendment

Hello!

The 24th Amendment prohibited poll taxes. 

Poll taxes were originally used as a way to discourage African Americans from voting in elections. Many African Americans were very poor, and they could not afford to vote. The Twenty-fourth Amendment put an end to poll taxes, which allowed more African Americans to vote. 

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A- slaverythe civil war was fought to prevent the expansion of slavery, not the abolotion of it