Which options would you consider while configuring a flash recovery area fast recovery area in 11g Release 2 for your production database that is running in ARCHIVELOG mode？（） 

A、A. Setting the FAST_START_MTTR_TARGET to set the mean time to recover

B、B. Setting the RECOVERY_PARALLELISM parameter to twice the number of CPUs

C、C. Using the DB_RECOVERY_FILE_DEST parameter to set the location for flash recovery area

D、D. Using the DB_RECOVERY_FILE_DEST_SIZE parameter to define the disk space limit for the recovery files created in the flash recovery area