In which situation will you run the script containing the following statement？（）   CREATE CONTROLFILE REUSE DATABASE SALES NORESETLOGS ARCHIVELOG        MAXLOGFILES 20        MAXLOGMEMBERS 3        MAXDATAFILES 30        MAXINSTANCES 10        MAXLOGHISTORY 1200        LOGFILE        GROUP 1 （   ’/disk1/prod/orders/db/log1a.dbf’，        ’/disk2/prod/orders/db/log1b.dbf’        ）SIZE 100K        GROUP 2 （   ’/disk1/prod/orders/db/log2a.dbf’，        ’/disk2/prod/orders/db/log2b.dbf’        ） SIZE 100K，        DATAFILE   ’/disk1/prod/orders/db/database1.dbf’，                                           ’/disk2/prod/orders/db/file1.dbf ’；  

• A、 when all the control files are missing and only a binary backup of the current control file exists
• B、 when a multiplexed copy of the current control file is missing
• C、 when all the control files are missing and only an ASCII representation of the binary control file exists
• D、 when the SPFILE is missing