Go back to 250-271 - Administration of Symantec NetBackup 7.5 for Unix

Question :-

If all the backup images on a FULL tape are expired using the Catalog tool in the Administration Console, when will the tape become AVAILABLE?
immediately
when the next image cleanup job runs
at midnight when Symantec NetBackup does housekeeping
when the status is manually changed to AVAILABLE

Want to practice for 250-271 - Administration of Symantec NetBackup 7.5 for Unix ? Click here.