for your information if you didn't know, most futures/options traded on CBOT have both upper and lower "limits' out of which trading will be automatically be stopped "for the day". this is to safeguard against price manipulations and also avoide market rushes/collapses, and has little to do with what the underlier is. i'm not familiar with when the last limit was put up.
btw, to answer ur question, if a company is bankrupt ur option is worthless, so is 90% assets of "stock holder" and any economical liquidation that has any valuable asset (if any) will first go to bond holders than to 'preferred' stock holders. when there is no stocks TRADED, what are u going to excercise ur option on!