The best answer is letter C. Dr. King uses the words “whirlwinds” and “shake” to help readers understand that a dramatic change is coming to the nation.
Explanation:
Dr. King's choice of words has the purpose of helping the audience to form a picture in their minds. Such picture should be one that shows how powerful the fight for change will be. That's why he employs words such as "whirlwinds" and "shake": to give the audience the feeling that the status quo will be challenged, that the world as they know it will tremble until justice is achieved.
