Which of the following is not an available client trigger?

The option indicating "Before record load" is not an available client trigger because NetSuite client scripts are designed to respond to specific events within the user interface, such as when a user edits a record or submits a form. The available client triggers in NetSuite include events that occur before a user submits a form, after a field has been sourced, or before a user edits a record, allowing for interactions that modify behavior based on user input.

In contrast, "Before record load" would imply an event that occurs prior to a record being displayed in the user interface, which is not a part of the client-side script functionality. The triggers are primarily focused on actions taken by users after the record has already loaded. Thus, understanding the scope of client triggers is essential for effectively utilizing client scripts within the NetSuite environment.