Answer:
a. Over time, those who had governed South Carolina prior to the Civil War returned to power to control the state.
Explanation:
"The Compromise of 1877" led to the return of power of the Democrats in Florida, Louisiana and South Carolina. This was because the federal troops were withdrawn by the Republicans from the South. This marked the <em>end of the Reconstruction era.</em>
Although the Democrats in the South promised protection over the black people, this did not materialize. This even led to <em>a separation of the whites and blacks </em>upon the implementation of the Jim Crow laws.
So, this explains the answer.