Read the excerpt from Harriet Tubman: Conductor on the Underground Railroad. This time she told them about the long agony of the Middle Passage on the old slave ships, about the black horror of the holds, about the chains and the whips. They too knew these stories. But she wanted to remind them of the long hard way they had come, about the long hard way they had yet to go. In this excerpt, how is Tubman using pathos to convince her group to keep moving?