How to fill part 4 - questions 3,4,5 on form I539 for extension H4 while I-485 is pending

Hi!

I’d like to ask you a question regarding “Filing I-539 for H4 Extension while I-485 Pending”.

My husband is approved H1B extension with I797A Notice Of Action. my I-94 will be expired on 8/25/2019. I want to clarify below questions related to I539 application to extend my H4 visa.

We have filled I-485 (on my husband’s I140), 765 and 131 applications on 01/31/2019 as our priority date became current. We are waiting for the EAD/AP, and I-485 decision. I want to clarify on what we have to select for below listed three questions in the I-539 for h4 extension.

I539 Application for H4 Extension - Part 4:

Q3: Are you, or any other person included on the application, an applicant for an immigrant visa?

Q4: Has an immigrant petition EVER been filed for you or for any other person included in this application?

Q5: Has Form I-485, Application to Register Permanent Residence or Adjust Status, EVER been filed by you or by any other person included in this application?

And one more question, Do I need to file I-539 to extend H4 visa ? If No, What steps I need to do to keep my H4 visa without out of status?

Regards,
Thu