The correct answer is B. Portrait.
Portrait mode is a page orientation in which the page is taller than it is wide. It is the default page orientation for most documents.
Landscape mode is a page orientation in which the page is wider than it is tall. It is often used for documents that contain a lot of images or tables.
Page setup is a dialog box that allows you to change the page size, margins, and other settings for a document.
Print preview is a feature that allows you to see how your document will look when it is printed.
None of these is the correct answer because it is not a valid page orientation.