Which of these components would be used in an activity diagram? output pin relationship control line message attribute

Lisa has a section of her document that she would like to include in the index. which option should lisa choose? mark index mark entry insert endnote add text

Under which key category do the page up and page down keys fall? page up and page down keys fall under the keys category.

Which location-sharing service offers items for users as a gaming component and also allows them to collectively link their check-ins to publish a trip? a. whrrl b. buzzd c. foursquare (this option is wrong i already tried) d. gowalla for plato