What is the correct solution?

You have backed up your database using image copies. You have lost the SYSTEM
tablespace and need to restart your database as quickly as possible. What is the correct
solution?

A.
Restore the SYSTEM tablespace from the last backup set and then recover the database.

B.
Restore the SYSTEM tablespace image copy using the restore command and then
restore the database.

C.
Use the switch datafile command to instantly switch to the datafile copy, recover the
tablespace, and open the database.

D.
The database is not recoverable in this situation with image copies.

E.
Manually copy the datafile image copy to the correct location and then manually restore
the database from SQL*Plus.