Answer:
Repetition
Satire
Rhetorical questions
Explanation:
In the first excerpt, Martin Luther King employs repetition. He repeats the phrase "when you have seen" several times in order to enhance his point and emphasize the importance of the examples he is providing.
In the second excerpt, Martin Luther King employs satire when he talks abous his secretaries answering correspondence all day or his responses to criticism.
In the third excerpt, Martin Luther King employs rhetorical questions. These questions are not meant to be answered, but they are designed to encourage the reader to think about these subjects, and form their own opinion.