What window displays the contents of a document and allows viewing and editing?

The document window is specifically designed to display the contents of a document, allowing users to view and edit information directly. It provides the main workspace where text, images, and other elements can be manipulated, making it an essential feature in various software applications. The layout of the document window typically mirrors the appearance of the final output, enabling users to work in a familiar format that closely resembles how the document will be presented or printed.

The other options represent different functionalities that do not serve the primary purpose of displaying and editing the document content itself. The tool window often contains options and features that assist with the editing process but does not display the document. The preview window generally offers a look at how the final product will appear but does not allow for editing. The display window could refer to any visual output area but lacks the specificity and functionality tied to editing documents like the document window does.