The Fourteenth Amendment to the United States Constitution is significant primarily because it granted citizenship to all persons born or naturalized in the United States, which included former slaves; this marked a major milestone in establishing equal rights for African Americans. The amendment also includes clauses that provide for equal protection under the law and due process, which were vital in advancing civil rights and fighting discrimination.
Therefore, the most correct statement reflecting the significance of the Fourteenth Amendment would be:
It granted African Americans in the United States citizenship and therefore voting rights.
While the amendment itself did not explicitly confer voting rights (which were addressed later by the Fifteenth Amendment), it laid the essential legal groundwork for future expansions of civil rights, including voting rights for African Americans.