How can text features help a reader analyze an authors argument?

Options:
They reveal the main points and show how factual support for the argument is organized
They include examples and reasons that support the argument not found in the main text
They highlight opposing claims and evidence that might counter the argument
They show where the most important information about the argument is located

All of the options listed can help a reader analyze an author's argument, but the option that specifically addresses how text features contribute to this analysis is:

- They reveal the main points and show how factual support for the argument is organized.

Text features such as headings, subheadings, bullet points, and bolded or italicized text can provide a reader with a clear outline of the main points and the structure of the argument. This helps the reader understand the logical flow and organization of the author's thoughts.