Why do courts use precedents in their decisions

Read this sentence from paragraph 4 of the speech. we set up the war-whoop, and dug up the tomahawk; our knives were ready, and the heart of black hawk swelled high in his bosom when he led his warriors to battle. how does black hawk use rhetoric to advance his viewpoint in this excerpt? a-the image of the “war-whoop,” the “tomahawk,” and the “knives” evoke violence, showing that black hawk took pleasure in fighting with the white men. b-the image of how his heart “swelled high in his bosom” evokes a feeling of pride, showing that black hawk believes his actions toward the white men were justified. c-the phrase “dug up the tomahawk” is an allusion to the many indian nations, showing that black hawk felt a kinship to others who had a similar plight. d- the phrase “led his warriors to battle” is an allusion to past wars, showing that black hawk believes war is a universal fact of life.