The telesales force requested additional ways to terminate the automated polling questionnaire. In addition to the default functionality, you provide a menu item and a button for this purpose. Adhering to efficient coding practices, which PL/SQL code do you use for the menu item and the button?（）

• A、EXIT 
• B、EXIT_FORM 
• C、DO_KEY('Key-Exit') 
• D、DO_KEY('EXIT_FORM')