What Was the "Lost Cause

What was the "Lost Cause"?

A) It was a term that referred to southerners' sense of embarrassment following the Civil War that they had ever engaged in and fought for a practice as terrible as slavery.
B) It was a common phrase used by African Americans to describe their frustrations with Reconstruction and belief that life had been better before the war because they had more security.
C) It was a narrative that described the widespread belief among northerners that Reconstruction had been a waste of time and had resulted in few advances in terms of African American rights.
D) It was a concept shared among northerners and southerners that whether they liked it or not, their prior way of life would be lost forever as they set aside their differences in favor of an integrated nation.
E) It was a sanitized version of history in the South that glamorized the old plantation culture and claimed that the Civil War concerned the honorable defense of states' rights rather than slavery.