I feel that the missing word is most likely "lens" - check if it's among your options.
When something is compared to a lens through which the word is seen, it means that the world is seen through a certain perspective, that it's using a certain interpretation: here that of literary theory.
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The answer is b so pick b because it’s B and B is the correct answer so listen and pick b
In "Civil Disobedience," Thoreau championed the idea that if a government is not going to improve itself, then it is the duty of the people to refuse to support it. This paved the way for non-violent protests, such as those led by Gandhi and Martin Luther King, Jr.