Hello! So, I saw someone else decided to answer this question for you.. but, it's incorrect. From there I decided I wanted to help instead of keeping that answer for you or anyone else. So, here it goes.. Bare with me.
The poll tax was a tax that made anyone who wanted to vote, to pay a fee for it. The general idea for the tax was to push off African-Americans from voting, because they couldn't pay the expensive fees due to inequality. But, there were several Caucasian people who couldn't afford it either. People were forced to pay the tax if they wanted to vote until around the 1960's as well. So, let me restate your question.
Why were poll taxes unfair?
Out of all the choices you gave it'd be "People in power charged voters a fee to keep them from voting." Not only would it make the most since but it was a big part of history that needs to be known, because it was important and it was apart of the inequality movement.
Thank you!
