<span>Definition: the medieval knightly system with its religious, moral, and social code.
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Synonyms:knight errantry, courtly manners, knightliness, courtliness, nobility<span>
Etymology: </span>
<span>Middle English: from Old French chevalerie, from medieval Latin caballerius, from late Latin caballarius ‘horseman’ </span>
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.
It depends on how you worded your essay and what your views on global warming are, the way I would word it is "in conclusion global warming is real and changing drastically every minute, and we don't fully know exactly how it will affect the world long-term" that's one way you can say it.
C is the answer
got it now