Which of the following places these events in the correct chronological order from left to right?
A.) Lincoln-Douglass Debates; Secession of Confederate States; Election of 1860; Gettysburg Address
B.) Lincoln-Douglass Debates; Election of 1860; Secession of Confederate States; Gettysburg Address
C.) Election of 1860; Lincoln-Douglass Debates; Gettysburg Address; Secession of Confederate States
D.) Election of 1860; Secession of Confederate States; Lincoln-Douglass Debates; Gettysburg Address