What Is The Answer To This I’m Confused

First, you need to read what the question want then trying to understand the passage.

Finish reading?

then find the answer by yourself:)

I just can give you some tips to answer this question because this question is too easy for me , I can't just give you the answer easily;)

regarding the law, the 15th amendment was specifically designed thinking in the rights of black free men.

even though ratified on february 3, 1870, the promise of the 15th amendment would not be fully applied for a long time.poll taxes and literacy tests would allow southern states disenfranchise african americans. only in 1965 the voting rights for african americans would be actually able to vote in the south.

in 1965, president johnson signed the voting rights act, which aimed to overcome legal barriers that prevented african americans from voting as it was guaranteed by the 15th amendment to the u.s. constitution.

number 4. should be the correct answer