The correct answer is answer 4 ("It stopped all aggression on both sides").
The Treaty of Ghent ended the War of 1812 between Great Britain and the United States. After both sides signed it, the borders of the two nations were restored to the lines that standed before the conflict had started, and it marked the beginning of over two centuries of peace between them.
It was signed during the Battle of New Orleans, not after. The news took about a month to reach the places in combat, but peace had already been signed before the US won that battle.
Native American hostilities continued for many years to come.
After the war ended and the treaty was signed, the United Kingdom still retained many north american territories that were under their domain before.
Hope this helps!