Respuesta :
D) If a slave was educated, he or she could escape and go north by reading maps and train schedules.
he slavers did not want thier slaves to have the ability to read, becuase not only was this uneccissary for them to fulfill thier duties, it was dangerous as they could read not only maps, but where they were last sighted, like in newspapers, so they would know how close the slave catchers were.