Answer:
✔ Headings tell the reader what each section of the text is about.
✔ Headings allow the reader to navigate easily through the text.
✔ Headings signal the order in which information will be discussed.
✔ Headings can help the reader determine the purpose and main ideas of the text
Explanation:

Answer:
The author’s main purpose in this excerpt is to describe a form of code writing using an example.
In the text in question, the author describes how General Clinton inserted a secret message in a text apparently unrelated to the information that he wanted to convey. That is, through a real situation, he exemplifies how a secret message could be introduced that changed the course of history.
The common people.
In the book, the nobles replaced the goods that they gave to Odysseus by the common people.
I hope this helps.
That they are rich and poor that means more money and less money