Christine would like to add something to her document that will illustrate the text. she should

The answer to the following question is the option "insert a graphic".

Explanation:

In this question, the answer is "insert a graphic".

In any document, if it contains only text. So it will be boring to read.  

To avoid this problem she must insert a graphic on her document.

For doing this she would able to explain the question more easily. and people would attract to know about the topic.