Answer:
B). Calm waters and white-water rapids.
Explanation:
Metaphors are described as the literary device that the author primarily employs to establish an implicit comparison between two distinct things.
As per the question, the two metaphors that are most commonly employed to relate the two perspectives of change are 'Calm waters(tranquility) and white-water rapids(speedy)' that aids to establish an implied comparison between the views. It clarifies the point more clearly and comprehensively to the readers. Thus, option B is the correct answer.
