In the late 1840's, what led to the question of whether slavery should expand to the territories?
Athe enactment of the Wilmot Proviso
Bthe violence of “Bleeding Kansas”
Cthe results of the Mexican War
Dthe attack at Harpers Ferry
Athe enactment of the Wilmot Proviso
Bthe violence of “Bleeding Kansas”
Cthe results of the Mexican War
Dthe attack at Harpers Ferry