It's definitely D.
It's for sure not C. And I've never read the full story, but this passage doesn't indicate a depressing mood of foreshadowing danger. And the vocabulary in the writing doesn't impact the story itself.
Brain storm, get ideas about your writing so you can put them together in your real one.
Thoreau was a philosopher, a naturalist and author. These propose the things that were significant to him. One of his quotes are, “Rather than love, than money, than fame, give me truth.”A philosopher means a person who is looking for truth. He felt that he needed freedom to follow his study of nature and to have a mind that was able, pure, and unique. So philosophy and independence were two of the many things that were significant to him. He could not rely on completely on wildlife and his own awareness for teaching. Another thing that was significant to him was his writing. He wrote lots of words and his printed writings fill twenty volumes. So this appears that the three things that were significant to him was nature, philosophy, and freedom.
What story are u talking about
It means someone who is not careful, clumsy.