Answer :
The statement which best explains the rhetorical device Dr. King used in paragraph 45 and its effect is The forceful use of antithesis suggests Dr. King’s hope for societal change.
Antithesis
Antithesis is the of proposition which contrasts with or reverses previously mentioned proposition.
In that paragraph, Dr. King used this rhetorical device to push for societal change by the use of antithesis, where he proposed for better views for the society which should transform and drive social and cultural institution over time.
Therefore, the correct answer is option C.
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