2 H1 B Visa- One in RFE and other approved

2 Employers filed for my H1 B visa (ex A and B)

Both got selected in lottery

A visa is in RFE

B visa is already approved

I am currently on l1B sponsored by A

I want to continue with A

So if A’s H1B RFE is not decisioned by Oct 1, do i have a compulsion to join B ( as B visa is approved)?