Which constitutional amendments focus on civil rights and voting rights following the Civil War?

The focus of the 13th, 14th, and 15th Amendments, collectively known as the Reconstruction Amendments, was to establish and protect civil rights and voting rights for former slaves and their descendants after the Civil War. The 13th Amendment abolished slavery, ensuring that no one could be held in involuntary servitude, except as punishment for a crime. This was a critical step toward civil rights, liberating millions from enslavement.

The 14th Amendment established citizenship for all persons born or naturalized in the United States and guaranteed due process and equal protection under the law. This amendment aimed to secure the rights of former slaves and protect against discrimination.

The 15th Amendment specifically aimed to protect the voting rights of African American men by prohibiting the federal and state governments from denying the right to vote based on race, color, or previous condition of servitude.

Thus, the 13th, 14th, and 15th Amendments are pivotal in addressing civil rights and voting rights in the post-Civil War era, making this answer correct. The other amendments listed do not address these specific civil and voting rights issues that emerged from the societal changes following the Civil War.