The answer is B: It has features that are available offline and online, when available.
Microsoft Office products have a help system that helps the user look up information as you continue working in particular Office application. Because every user is different, the Help tool can be accessed while in both offline and online mode. Pressing F1, for instance, will display the Word Help dialog box. The dialog box has an option located at the bottom where a user canchoose between getting help online or getting help offline.