Which Statement Best Describes the Results of Reconstruction

Which statement best describes the results of Reconstruction?

A) The effort failed in every way to meet its goals.
B) Although there were problems involved in the process,in the end conditions were much better for African Americans in the South by the end of Reconstruction.
C) Northern support for Reconstruction remained strong and resolved to the end.
D) While the immediate results were not as positive as African Americans had hoped,the amendments and legislation enacted proved vital in future efforts to secure civil rights.