When a user selects the File menu, the view is displayed.

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When is a chart legend used a. all the time b. whenever you are comparing data that is the same c. whenever you are comparing multiple sets of data d. only for hand-drawn charts

Facial expressions and gestures are examples of messages.

Someone plzz me which of these defines a social search? a. asking a search engine a question that is answered by a real person on the other sideb. modifying search results based on popularity of a web pagec. modifying search results based on a ranking of a web page