HELP PLEASE !! Which event described in the secondary source about the Gettysburg Address "set the precedent that the states would ultimately remain indivisible as members of a single nation"?


A. Edward Everett's speech that was delivered before the Gettysburg Address

B. The signing of the Proclamation of Amnesty and Reconstruction

C. The dedication of the grounds of the Battle of Gettysburg as a cemetery

D. The signing of the Emancipation Proclamation