Answer:
Martin Luther King Jr. frequently used alliteration in his speeches to create a memorable and rhythmic effect that could engage and inspire his audience.
Step-by-step explanation:
An example of alliteration in King's "I Have a Dream" speech is:
"Let freedom ring from every hill and molehill of Mississippi. From every mountainside, let freedom ring."
Here, King repeats the sound "f" in "freedom" and "ring" to create a strong and resonant effect that draws attention to the central message of his speech, which was the fight for civil rights and equality.