Answer: D. set fires to burn the crops.
Explanation: Setting fires to crops was a method of resistance used by enslaved people on southern plantations as a means of sabotaging the plantation system and disrupting their enslavers' profits. This was a dangerous form of resistance as enslaved people faced severe consequences, including punishment, if they were caught. However, some enslaved people saw it as a means of taking control of their lives and asserting their agency in a system that had stripped them of their freedom and basic human rights.