Which of the Following Was True at the End of Reconstruction

Which of the following was true at the end of Reconstruction in the United States?

A) The new state governments kept their constitutions from before the war.
B) Union troops remained a major presence in the South under President Hayes.
C) Blacks were free, but their civil rights remained threatened.
D) Black politicians remained more prominent in new state administrations than whites.
E) Louisiana and South Carolina remained Republican governments for the next thirty years.