Answer:
Four
Step-by-step explanation:
The 24th admendment outlawed making citizens pay to vote (at least, on a federal level). Based on just this, one may say that the answer is number three, people can't buy votes. However, by taking away the poll taxes this enables all citizens to vote, no matter their income level. Remember, the question is not asking what the twenty-fourth admendment is, but what its importance is. Therefore (no pun intended), the answer is four, people of all income levels can vote.