(mc)which statement describes a common trait of the three reconstruction amendments? they all prevented states from re-establishing a system of slavery. they have all been used to expand voting rights for minority groups. they all focused on extending citizenship and protecting civil rights of minority groups. they were all supported by both republicans and democrats at the time of their passage.

They all focused on extending citizenship and protecting civil rights of minority groups.

Explanation:

The Reconstruction Amendments (The thirteenth, fourteenth, and fifteenth amendments) were a series of legislation that aimed at recognizing the basic liberties of all race and minority groups, such as African Americas.

In theory, the amendments progressively recognized minority groups as equal humans beings to White Americans, through the prohibition of slavery (13th), the extension to citizenship to all person born or naturalized in the U.S. and the guarantee of due process and equal protection under the law (14th) and the protection of their right to vote (15th).

although the legal justifications for the trials and their procedural innovations were controversial at the time, the nuremberg trials are now regarded as a milestone toward the establishment of a permanent international court, and an important precedent for dealing with later instances of genocide and other crimes

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