RFE on change of status application

[senmng 0]

Since my H1B visa got exhausted with full 6 years tenure last October ,I had applied  B2 visa(pending now) to continue my stay as my PERM was in progress in that time. Now I got approval for PERM and i140 but I got RFE for my extension(change of status).They are looking for evidence which should show the valid immigration status when i applied the extension . My question is that since we don't have any control over the B2 visa process how come we provide the evidence of approved B2 visa.

Edited February 3 by senmng