Which booking option should I select for a guardian visa extension at Bangkok Immigration?

We’re about to book an appointment for 12-month extension for a guardian visa at Bangkok Immigration.

On the booking page, do we select “Extension for Thailand Elite Member / Study / Teacher / Professor / Instructor / Expert or Educational Personel”

OR

“Extension Visa for Visit Spouse / Thai Children or in Case of Thai husband / Thai wife” among the booking services?

We’re all foreign nationals, and this appointment is for the parent / guardian visa extension, not our child.

(Edited this post as it was declined first time)