When you survey a chapter to better understand difficult text look at all the following except .?

When you survey a chapter to better understand difficult text, you should look at all of the following, except:

The index.

The index is a guide to the content of a book, but it is not typically used to help understand difficult text. Instead, you should read the introduction, preface, headings, and subheadings, and use the page numbers in the index to find specific information.