EAD/AP renewal documents

[archie20]

I am on EAD status with 485 pending. I need to renew my EAD/AP . What are the documents i need to send. Also what do i fill in the column of eligibility status in ead form. Its c9 and what else. (Question 16) Do i need to fill question 17. Mine is employment based GC.

EB2 May 2004
AD Oct 2006
140/485/EAD/AP RD Aug 8 2007
ND Oct 2007
AD EAD Oct 2007
AD AP Oct 2007

Also how do I find out my 140 receipt no.
Thanks in advance.

[txh1b]

https://www.immihelp.com/employment-authorization-document-ead/

If you answer C (9) to Q 16, where does the need to answer Q17 arise from? Did you read Q17?