The correct answer is D) to separate supporting details.
<em>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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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.
The early leaders of the Zhou Dynasty introduced the idea of the "Mandate of Heaven". ... The government of the Zhou was based on the feudal system. The emperor divided the land into fiefs that were usually ruled by his relatives. The nobles who ruled the fiefs basically owned the farmers who worked their lands.
