The Fourteenth Amendment is referred to as the cornerstone of modern civil liberties. Thus option (A) is correct.
The 14th Amendment was made in the Constitution of the United Sates, which was approved in 1868, promised "equal protection of the laws" to all citizens, including former slaves, and extended citizenship to anybody born or naturalized in the country.
The foundation of contemporary civil freedoms is often referred to as the Fourteenth Amendment. As a result, choice (A) is right.
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