It says: FOR OFFICE USE ONLY so leave it blank, that's not for you to fill up.
Person being sponsored: If your spouse is sponsoring you then write your information on the pertinent parts of the form.
You have other questions:
Family member details: if you have son/s and/or daughter/s then enter their information on the spaces provided otherwise leave them blank. Your spouse is sponsoring you so you do not enter his info on the family details.
bdo32 said:
GOOD DAY...
I WANT TO ASK ABOUT THIS FORM QUESTION A. WHAT MEANS ID NUMBER?
C. PERSONS BEING SPONSORED IM THE SPONSORED
WHAT IS THIS ID NUMBER?