I can't see the examples. But assonance means a resemblance in the sounds of words or syllables either between their vowels (e.g., meat, bean) or between their consonants (e.g., keep, cape).
I agree with the person above - I believe the correct answer is A. serenity.
Thoreau was a transcendentalist, which means that he wrote about nature quite a lot. He believed that people should return to living in nature and escape from the concrete cities they were surrounded with in order to find their true selves once again. His description of the pond during the night and day creates a serene and peaceful picture one could relax to.
A primary source is where the information comes directly from the original copy or someone who experienced it first hand, and where as a secondary source is someone or something that was not there when the event took place- hope this helps!!
