Given the script   create script db_backup_datafile_script  {backup datafile and 1， and2 plus archivelog delete input；} Run {execute script db_backup_datafile_script using 2；}   What is the result of running this command？（）  

• A、 The script will fail since you instructed RMAN to back up only one datafile rather than two
• B、 The script will successfully back up datafile 3 without error
• C、 The script will fail since it uses a substitution variable which is not supported
• D、 The execute script command will prompt for the value of and2 since it’s not included in the command
• E、 The script will fail because you cannot use the plus archivelog command when backing up