In the Late Nineteenth Century, Those Political Candidates Who Campaigned

In the late nineteenth century, those political candidates who campaigned by "waving the bloody shirt" were reminding voters

A) of the gory memories of the Civil War and the Republican party's role in the Union's victory.
B) that the Civil War had been caused by the election of a Republican president.
C) that Republicans had reformed the corrupt radical regimes in the Reconstruction South.
D) that radical Republicans catered to freed slaves during Reconstruction.
E) of Ku Klux Klan violence against blacks.