Question about I-140 and EAD for my OPT WIFE

USA
1

My wife is currently on her F1-OPT. I have my approved I-140. Is my wife eligible to apply for EAD using my approved I-140?

Is I-140 eligible for H4 visa only to apply for an EAD?

2

Only H4 can apply for H4 EAD of H1B has approved I-140.