An LOV must be displayed several times in your form; therefore, good performance when displaying LOV is essential. In a When-New-Form-instance trigger, you want to save the ID of the LOV in a global variable so that you can use it in any code to display the LOV.Which built-in would you use to get the ID of the LOV?
You must be careful when coding a When-Button-Pressed trigger, because it does not accept restricted built-ins.
Which three are valid ways to populate a display item?