H1B layoff, H1B transfer-RFE raised, New H1B approved

I was laid off by Company A on August 14th. I found a job with company B on October 14th. A transfer of H1B was filed by company B, but an RFE was raised asking me to prove that I had maintained my status. Since, I had no way of proving that I had maintained my status, a new H1B was filed by company B. The new H1B was approved. I have my stamping interview in 3 days. What kind of questions should I be prepared to answer? I am concerned that they might not approve my case. Please help!!