Which situation was a major result of commodore matthew perry's opening of japan in 1854? a. the united states sought to annex japan b. large numbers of americans began to settle in japan c. japanese leaders began to accept western technology d. japan adopted a strict isolationist policy

A

Japan transitioned from being isolationist to being more open.

Explanation:

the answer for 3 is b and the answer for 4 is d

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.