Final answer:
Columns can be added to a page in the Page Setup tab of a word processing application. The correct option is D.
Step-by-step explanation:
Columns can be added to a page in the Page Setup tab. When you want to organize content in a Word document into multiple columns, you navigate to the Page Setup to adjust the layout of your document accordingly. This option allows you to choose from a range of column formats to best suit the type of document you are creating, whether it be a newsletter, a magazine, or a business document.
It's important to note that the other options presented, such as Themes, Paragraph, and Styles, serve different functions within the word processor. Themes are used to apply a consistent style across your entire document; Paragraph is for adjusting text alignment, line spacing, and indentation; and Styles is for applying preset formatting to your text. However, for adding and configuring columns, the Page Setup is the correct place to go.