Your database is open and running in ARCHIVELOG mode. You take RMAN full backups every Sunday night. On Monday morning， while querying the user1.employees table， you receive the following error message： 01578： ORACLE data block corrupted （file # 5， block # 51） ORA-01110： data file 5： ’/u01/app/oracle/oradata/orcl/example01.dbf’ You need to rectify the corruption while ensuring the following： The data file should remain online. The mean time to recover （MTTR） should be minimal. You are not using a backup control file， and all the archived logs are accessible. Which option would you choose？（）
- Aflash back the corrupted blocks
- Buse the DBMS_REPAIR package
- Cuse the RMAN TSPITR command
- Duse the RMAN BLOCKRECOVER command
- Euse the RESTORE DATABASE and RECOVER DATABASE commands
- Finvestigate the time at which the corruption occurred and perform a point-in-time recovery