Answer:
They caused work slowdowns.
Explanation:
The way in which the slaves rebelled agaisnt the system was by slowing down the work, they couldn´t publish personal narratives, and the ones that did were already free men, and the Underground Railroad was what they called the way in which slaves were transported into free land and were slavery was abbolished, so the only thing that they could do was to work as little as they could and diminish the profits their owners had.
