"oppressed people cannot remain oppressed forever. the yearning for freedom eventually manifests itself, and that is what has happened to the american negro. something within has reminded him of his birthright of freedom, and something without has reminded him that it can be if one recognizes this vital urge that has engulfed the negro community, one should readily understand why public demonstrations are taking place. the negro has many pent-up resentments and latent frustrations, and he must release them. so let him march; let him make prayer pilgrimages to the city hall; let him go on freedom rides–and try to understand why he must do so. if his repressed emotions are not released in nonviolent ways, they will seek expression through violence; this is not a threat but a fact of history." --dr. martin luther king, jr., letter from birmingham jail, 1963 according to this excerpt from dr. martin luther king jr.'s letter from birmingham jail, it is clear that a) king advocates the use of non-violent civil disobedience as a method of protest against racial injustice. b) king supports the use of violent protests if southern whites continue to infringe upon their civil rights. c) king believes that southern churches will be the force that ends the conflict between segregationists and african-americans. d) king believes that the only solution to the racial conflict in the american south is intervention from the federal government.