Final answer:
Jada should use the "Footnote" feature in her document to create a note at the bottom of the page, which provides a professional way to include additional information linked to the main text.
Step-by-step explanation:
To create a note at the bottom of a page with a reference to the note in the text, Jada should use the "Footnote" feature. This feature allows for comments, explanations, or additional information that can't easily be integrated into the text to be placed conveniently at the bottom of the page where the citation appears. The footnote is then linked to the text with a superscript number, allowing easy navigation between the text and the note. Manually typing the note, using a text box, or adding comments would not provide this level of integration or ease of use.