Question

Â__________ headings help guide both the writer and reader through a document.

Answer 1

A Informative heading helps guide both the writer and reader through a document.

Answer 2

I believe the answer is: e.Informative

informative headings refers to the type of headings is created in order to provide some sort of guide that help the readers understand what to expect on the content below.  This type of headings are the most preferred ones among academia since it help the readers scan through the only parts that they need from the whole document.