Writers should include references to their research in an argument because it adds credibility to the argument to the argument they wish to prove.
<span>The correct answer is C. Quotation marks are always used in pairs. A is incorrect, because titles can also be italicized rather than marked with quotations, depending on the piece. B is incorrect, because they are indeed used for citing someone's exact words. D is incorrect, because italics are more often used to emphasize a word. </span>
The answer is B. One of the most basic operations in glasswork is breaking glass to a desired length.
Options A, C and D do not make sense grammatically.
The inference shows that the details that the author include to support the central idea include doubly revolted, obsession, and cautionary tales.
<h3>What is a central idea?</h3>
It should be noted that a central idea simply means the main idea that's conveyed in a literary work.
In this case, the inference shows that the details that the author include to support the central idea include doubly revolted, obsession, and cautionary tales.
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