In this portion of his famous speech, what is one way that dr. martin luther king, jr. expresses his message or theme? a) he uses similes to compare the issues that he mentions in his speech. b) he uses a metaphor to compare an uncashed check to the promises of america. c) he uses personification to make the united states of america seem like a real person. d) he uses hyperbole to exaggerate the lack of freedom and justice in the united states.