Question

according to the 13th amendment, who could still be forced to do work without pay?
former confederate soldiers
people convicted of a crime
immigrants
minors

Explanation:

The 13th Amendment to the U.S. Constitution abolished slavery and involuntary servitude, except as a punishment for crime where the party has been duly convicted. So people convicted of a crime can still be forced to do work without pay as part of their punishment.

Answer:

People convicted of a crime