Which is true about the Button Name attribute? 

Answer options:

A. When the page is submitted by clicking the button, the value of REQUEST is set to the button name.
B. The button name is a unique identifier on a page. No other buttons or page items on the page can have the same name.
C. The button name defines what database action is done on page submit.
D. The button name serves as a static ID, which is useful when developing custom JavaScript functionality for the button.

A

Reference: https://docs.oracle.com/database/121/HTMDB/bldapp_but.htm#HTMDB25447