Which button will add an envelope to a document, ensuring that the document and envelope both print together?

a. Add Electronic Postage

b. Omit

c. Options

d. Add to Document

This is a simple question if we look at the options A. this is only logical answer as this button adds envelop in document so that both document and envelop print together B. This is used to remove or omit C. It shows other options for user D. It adds some chard or anoter thing in the document