What amendments were used to determine the conclusion of plessy 1896 brown 1954

Fourteenth Amendment

Explanation:

The 14th Amendment to the U.S. Constitution, ratified in 1868, granted citizenship to all persons born or naturalized in the United States—including former slaves—and guaranteed all citizens “equal protection of the laws.”

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the correct answer is :

{b.}   ( american workers lose job opportunities )

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