I-485 with I-134 or I-864 for Affidavit of Support?

[yourzhwp]

i had sumbitted I-485(NIW). when my wife submit I-485, she should sumbit I-134 or I-864 for Affidavit of Support?

which one she should use as Affidavit of Support?

thanks

 

[manwithnoname]

To my knowledge it is I-134.