Question

following the passage of the fifteenth amendment, states attempted to limit voting rights of african americans through registration quotas. state constitutions. poll taxes and literacy tests. blood tests and genealogy.

Explanation:

After the Fifteenth Amendment gave African - American men the right to vote, states used poll taxes (a fee to vote) and literacy tests (tests to determine reading and writing ability) as ways to disenfranchise them. These were discriminatory measures that disproportionately affected African Americans who had been historically denied access to education and economic opportunities.

Answer:

C. poll taxes and literacy tests