Answer:
I think it's b
Explanation:
altho I don't know what the sentence your replacing or the article but b looks like a good choice
The secession of Southern States led to the establishment of the Confederacy and ultimately the Civil War. It was the most serious secession movement in the United States and was defeated when the Union armies defeated the Confederate armies in the Civil War, 1861-65. Hope this helps, good luck! :)
The battles that happened before the passing of the D.I. were
Battles of Lexington and Concord
Siege of Boston
Capture of Fort Ticonderoga
Battle of Chelsea Creek
Battle of Machias
Battle of Bunker Hill
Battle of Gloucester
Siege of Fort St. Jean
Burning of Falmouth
Battle of Kemp's Landing
Siege of Savage's Old Fields
Battle of Great Bridge
Battle of Quebec
Burning of Norfolk
Battle of Moore's Creek Bridge
Battle of the Rice Boats
Battle of Nassau
Battle of Saint-Pierre
Battle of Block Island
Battle of The Cedars
Battle of Trois-Rivières
Battle of Sullivan's Island
Battle of Turtle Gut Inlet
