After ratification of the fifteenth amendment,

voting rights could not be denied based on race.

voting rights could not be denied based on gender.

poll taxes became illegal and unconstitutional.

literacy tests became illegal and unconstitutional.

It would be choice A:voting rights could not be denied based on race I just took the exam and got it right :)

Voting rights could not be denied based on race.

Explanation:

The Fifteenth Amendment (1870) established that the rights of U.S. citizens to vote must not be denied or abridged on account of race, color, or previous condition of servitude. Therefore, it legally granted African Americans men the right to vote for the first time in American history, who had been harshly discriminated for decades. However, America would still have a long way to go to fully accomplish to stop legal discrimination.