Why do authors of the seven wonders of the world and art architecture and learning in egypt both use subheadings
a. to clarify imporant vocablary
b. to show the centrail indea of the text.
c. to suggest other titles for the articles
d. to seprate supporting detail

The correct answer is D) to separate supporting details.

The authors of the “Seven Wonders of the World and Art Architecture” and “Learning in Egypt”, both use subheadings to separate supporting details.

The authors use headlines to capture the interest of the reader, but the subheadlines are equally important to keep the attention of the reader. If a writer comes up with a good headline, it is possible that it can grab the attention of the reader. But the writer must understand that using correct subheadlines is going to keep the reader attention and interest on the topic at hand, and the details of the story are going to be clear. That is why The authors of the “Seven Wonders of the World and Art Architecture” and “Learning in Egypt”, both use subheadings to separate supporting details.  

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explanation: