Walden by Thoreau is a book about nature and a simple way of living. The imagery in the text illustrates his purpose to continue to explore the world in a fulfilling manner. Thus, option B is correct.
Imagery is a figurative language that vividly describes the visual representation of the setting in a unique way. By using the imagery the writer wants the readers to understand something unique about nature.
Thoreau compares nature by using imagery and his philosophical way. He wonders about nature and enjoys it to the fullest by traveling on a deck and perceiving its true beauty.
Therefore, option B. imagery is used to show the writer's goal to continue exploring.
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