What AutoCAD layer never appears on plots whether turned ON or OFF?

Thanks for the invite. Sorry, the question is out of my field.

Answer is: option ( 2 ) Defpoints

Define points   is the  answer 

Thanks for invitation, option 2 is the correct choice.

Thank you for the invitation

Option 2

With greetings and appreciation

Thank you for the invitation

Agreed with the engineers answer

God grants success