<u>Answer:</u>
A. Viewing big-picture topics
D. Rearranging topics
E. Showing and hiding details
F. Understanding a document's logic
<u>Explanation:</u>
Viewing big-picture topics
, rearranging the topics
, showing and hiding the details and understanding a document's logic are some of the activities that work well for an outline of a document.
These things just make the outline of a document more prominent and easily readable and takes lesser time to go through it in comparison to reading the whole of the document.