What does Lincoln proclaim in the Emancipation Proclamation? Enslaved people across the United States are to be freed.
Enslaved people in states in rebellion against the United States are to be freed.
States in rebellion against the United States are to be granted their freedom.
Enslaved people in rebellion are to be granted their freedom.

President Abraham Lincoln issued the Emancipation Proclamation, which declared that all enslaved people in the states currently in rebellion against the Union “shall be then, thenceforward, and forever free."

Explanation:

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.