Read the two excerpts from dr. king's speech. we must come to see that no individual can live alone: no nation can live alone. *** in a real sense, we must all learn to live together as brothers, or we will all perish together as fools. what technique makes both excerpts effective? an appeal to logic the use of repetition the use of counterclaims an appeal to credibility

B) the use of repetition.

Explanation: repetition is a literary device that consists in repeating certain words or phrases in a sentence or paragraph, in order to create an impact in the reader. The given excerpt are effective because of the use of repetition, in the first excerpt we can see it in the phrases "no individual can live alone: no nation can live alone" and in the second excerpt the repetition is in the phrases "live together as brothers" and "perish together as fools."