Answer:
To address uncomfortable or confrontational subjects
Keeps the reader or audience engaged.
Releases tension for characters and the audience or reader
Makes the characters real and multi-dimensional.
Makes your work memorable.
In this excerpt from Kennedy's 1963 Civil Rights Address, the idea that is being most clearly defined is B) equality.
He states that every American man or woman of any color should be equal, and that there shouldn't be any differences between white and black people.
According to what you are describing, the plot device used is the "in media res"
This technique In Media Res means " in the middle of things", and that is exactly how it works, in media res is to start a story in the middle of the story itself instead of its beginning, that is, start the story of the facts showing the characters already involved in the conflict that structures the story, using this technique allows a more dramatic beginning of narration: the story will begin with the protagonist already in trouble, and with this we will capture the interest of the reader from the first moment.
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