Which Amendment gave United States citizens of all races the right to vote?

A. 13th Amendment

B. 14th Amendment

C. 15th Amendment

D. 16th Amendment

Your answer is C. 15th Amendment

The Fifteenth Amendment to the United States Constitution prohibits the federal and state governments from denying a citizen the right to vote based on that citizen's"race, color, or previous condition of servitude". It was ratified on February 3, 1870, as the third and last of the Reconstruction Amendments.

C, the 15th Amendment

and I quote from the constitution "granted African American men the right to vote by declaring that the "right of citizens of the United States to vote shall not be denied or abridged by the United States or by any state on account of race, color, or previous condition of servitude."