What is the cause of this issue?

A technician must use the iDRAC UI to roll back a diagnostics firmware revision on a server that was updated four weeks previously. However, the replaced version cannot be found in the Firmware Rollback section on the iDRAC UI.

What is the cause of this issue?
A . The Rollback feature was not enabled in iDRAC Settings.
B . Diagnostics firmware is not supported in the Rollback feature.
C . The Lifecycle Controller was not updated before the rollback.
D . Firmware can only be rolled back within a week of being replaced.

Answer: B