Which of the following will be accomplished by efficient allocations of the factors of production?

guaranteeing economic success
understanding whether a product will fail
fulfilling many needs and wants of society
replenishment of limited resources

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explanation:

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.

the speech convinced americans that the ussr was an enemy, rather than an ally, which led to the creation of the truman doctrine.