The rhetorical device that Thoreau uses here is A) Metaphor
Metaphor describes a subject or objects as a different one or makes a comparison between them as if the were quite similar.
Rhyme is the use of repetition in one or two words more commonly at the end of each line
Meter creates a sound pattern in writing through the use of stressed and unstressed words being this organized to go one and one.
Parallellism uses repetitive structures in sentences.
