The sidebar help readers better understand and identify bronze sculptures. Thus the correct answer is A.
<h3>What is sidebar?</h3>
In a nonfiction article, a sidebar is a brief passage of text that gives information about the article's primary subject. It is graphically distinct but connected to the main theme and can be found on the sidebar of the article.
Statement A enables readers to identify which sculpture is made of bronze, hence it counts as a sidebar. Not everyone is familiar with the distinction between bronze sculpture and other types of sculpting, this kind of method requires supervision.
Therefore, option A It helps readers understand and identify bronze sculptures is the appropriate answer
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