Which amendment is not described correctly?
a. the nineteenth amendment gave women the right to vote.
b. the twenty-sixth amendment lowered the voting age to 18
c. the fifteenths amendment gave former slaves the right to vote.
d. all amendments are described correctly

I would say all of them are described correctly (So D. pretty much...)

Based on the given list of amendments above, the answer for the question would be option D. All the amendments listed above are described correctly. The Fifteenth Amendment prohibits denying citizens the right to vote based on that citizen's "race, color, or previous condition of servitude". It was the twenty-sixth amendment that lowered the voting age, and the ninth amendment gave women the right to vote. Hope this helps.