Final answer:Headers are the best tool to help readers scan a document because they provide quick summaries of the content underneath them, aiding readers in finding the specific information they're looking for. So the correct answer isOption B.Explanation:The element that best helps readers scan a document isB. Headers. Headers act as capsuled summaries of the content beneath them, allowing readers to quickly identify and locate the specific information they need within the document. For example, in the text you provided, the headers'Adaptation'and'Objections to Taking Action'give the reader a clear indication of what to expect in the following paragraphs.This common feature in many forms of writing brings structure and organization to the document, turning it into a more reader-friendly resource.Learn more about Document Scanning here:brainly.com/question/33879555#SPJ4...

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