It drives home the idea that one's behavior can have unintended effects.
Answer:
It establishes the stance the writer will take toward the subject.
Explanation:
THE answer is C
The sentence that uses ellipses correctly is the following one: Arnold says that the " . . .Sea of Faith . . . Lay like the folds of a bright girdle furled." Ellipses are used to mark where some words in a quotation have been omitted. Ellipses should not be used at the very end of a quotation.
A, would be the best thesis statement for the essay.