Ending of Reconstruction: Key Events

In the years following the Civil War, the United States faced significant challenges during the Reconstruction era (1865-1877), particularly regarding the reintegration of Southern states, civil rights for freed slaves, and the overall political landscape. By 1877, various political compromises and social pressures culminated in the end of Reconstruction. One key event that marked this conclusion was the withdrawal of federal troops from the South. Which of the following policies or events most directly contributed to the end of Reconstruction?