4. After the passage of the 13^m,14^m and 15^th amendments, African Americans continued to experience political and economic oppression mainly because - Southern legislatures many African Americ poor communication rights. the amendments we

The correct answer is: Southern legislatures.<br /><br />After the passage of the 13th, 14th, and 15th amendments, African Americans continued to experience political and economic oppression mainly because Southern legislatures implemented various measures to circumvent and undermine these amendments. These measures included the implementation of Jim Crow laws, literacy tests, poll taxes, and other discriminatory practices that effectively disenfranchised African American voters and restricted their economic opportunities.