Why might a reader look for an idea that's restated? to figure out what key support the author uses to develop the main idea to identify what the author wants readers to do with the information in the article to prepare a solid summary of the support used by the author in the article to understand the organizational pattern of the chapters and subheadings

I think it would be "To identify what the author wants readers to do with the information in the article."

The answer is B: To identify what the author wants readers to do with the information in the article.

Restating an idea is repeating the same idea in different words and using a different structure. A reader may look for an idea that is restated because it shows that the author wanted to place a certain emphasis on that idea by repeating it. In this way, the reader can understand what was the objective of the author and what he/she wants the reader to do with the information in the article.

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