The best statement that compares the rhetorical devices used in the passages is:
What to the Slave is the Fourth of July employs rhetorical questions and Lincoln’s Second Inaugural uses anaphora.
In "What, To a Slave, is the Fourth of July?", Frederick Douglass uses rhetorical questions to provoke thought and highlight the hypocrisy of celebrating freedom while people remain enslaved. In contrast, Abraham Lincoln's Second Inaugural Address employs anaphora with phrases like "with malice toward none" and "with charity for all" to emphasize his call for unity and healing after the Civil War.