Two of the most common file formats for bitmap graphics used in Web pages are ____.

After selecting a heading level, clicking the Demote button moves it:

A) up one level (to the left in the outline). B) up one level (to the right in the outline). C) down one level (to the left in the outline). D) down one level (to the right in the outline).

Function________returns a list of all currently active Thread objects.

a) threading.enumerate. b) threading.activeCount. c) threading.count. d) None of the above.