Which of the following returns a bool?

The FILE tab is an example of a contextual tab

Indicate whether the statement is true or false

When a Web address is typed in and a message is received that states that "The page cannot be displayed," all of the following could be potential problems EXCEPT ________

A) the page is only available on weekends B) the Internet connection is not available C) an incorrect URL was entered D) the page is gone or the link is dead