Task static method ________ enables you to wait for any one of several Tasks specified as arguments to complete—the method returns the Task that completes first.

Operator LIKE can be used with wildcard characters________and_________ .

a) percent (%) and underscore mark (_). b) ampersand (&) and percent (%). c) asterisk (*) and hyphen (-). d) None of the above.

You must be logged in as the ____________________ user or have DROP privileges to delete a database.

Fill in the blank(s) with the appropriate word(s).