How graduation before F1 reinstatement affects OPT eligibility

Dear All,

I am a PhD student graduating on 12/19/2014, and my application for F-1 reinstatement has been pending since 10/14/2014. Therefore I am facing such a hard situation that my DSO has never met before. They do not know if graduation while F-1 reinstatement is pending will harm the possibility of reinstatement approval. Even supposing that the reinstatement is fortunately approved during the 60-day grace period, it is still unclear if I can apply for OPT. I wonder if anyone has met similar situation, and can share some experience with me. Thanks.