You work as a systems technician at Certkiller .com. You have attempted to implement a complex change to your system, however, change fails.
In which state would it best to leave the configuration?

A.
In the default state.

B.
In the state of the last clone backup.

C.
In the state is defined in the back-out plan.

D.
In the state in which the change failure was discovered.

E.
In the state that is as near as possible to completion of the change.