Does each of my parent need an online application for themselves?

[Greninja]

Both of my parents are in valid marriage with each other, should they use separate online application to apply or use my father as the principal applicant and include my mother together in a single application (so only 1 application in total) ?

I have claimed both of my parents in the interest form in 2020, now I have received the invitation.

Thanks !

 

[YVR123]

Both of my parents are in valid marriage with each other, should they use separate online application to apply or use my father as the principal applicant and include my mother together in a single application (so only 1 application in total) ?

I have claimed both of my parents in the interest form in 2020, now I have received the invitation.

Thanks !

If they are married, one application and pick one parent as PA and the other as dependent.

 

[Greninja]

If they are married, one application and pick one parent as PA and the other as dependent.

Thank you !