When was the fifteenth amendment ratified

after civil war

after world war 1

during the civil rights movement

during segregation

After civil war is the correct answer.

Explanation:

Fifteenth Amendment was ratified on February 3, 1870. It protects the people's right elect their leaders and vote in the elections. It also deals with the conditions which are necessary to deny a person the voting rights. Race and colour cannot be the valid reasons for denying the right to vote. This amendment  empowered African Americans and gave them the right to vote. After the amendment they could be elected int public office and people of different races could marry. It was passed after civil war but the federal government had to be step in to enforce it as the southern state governments had enacted laws to bar the African American from voting rights.

d) a constitutional amendment