单选题An RMAN backup job fails， displaying the following error message： ORA/x7f19809： limit exceeded for recovery files Your analysis shows that the Flash Recovery area is full. What would you do to resolve the error？（）Aincrease the value of UNDO_RETENTIONBchange the value of WORKAREA_SIZE_POLICY to AUTOCincrease the value of DB_RECOVERY_FILE_DEST_SIZEDincrease the value of CONTROL_FILE_RECORD_KEEP_TIME
单选题
An RMAN backup job fails， displaying the following error message： ORA/x7f19809： limit exceeded for recovery files Your analysis shows that the Flash Recovery area is full. What would you do to resolve the error？（）
A
increase the value of UNDO_RETENTION
B
change the value of WORKAREA_SIZE_POLICY to AUTO
C
increase the value of DB_RECOVERY_FILE_DEST_SIZE
D
increase the value of CONTROL_FILE_RECORD_KEEP_TIME
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