To view the entire page of a document, which of the following should you do?

A) Drag along the vertical ruler.
B) Reduce the zoom level.
C) Change the Touch/Mouse mode.
D) Display Backstage view.

Vertical Ruler

A tool displayed along the side of a document window in word processing software, used for measuring and aligning text, images, and other elements vertically.

Zoom Level

The degree to which a document or image can be enlarged or reduced for viewing or editing.

Touch/Mouse Mode

A user interface feature that optimizes the interaction method based on whether a touch screen or a mouse is being used.