What was changed by the passage of the 13th Amendment? Choose three correct answers.

The 13th Amendment abolished slavery throughout the United States, so states could no longer allow it. It prohibited involuntary servitude except as punishment for a crime after a person has been convicted, not merely charged. It also gave Congress power to enforce the amendment through legislation. Therefore, the correct answers are that states could no longer allow slavery, involuntary servitude remained an exception for convicted people, and Congress could enforce abolition.

AI-written and checked against the verified answer.