You work as a database administrator for Certkiller .com. Your database is opened in NOARCHIVEKLOG mode. You decide to place the database in ARCHIVELOG mode.  How would you do this?()
A:Execute the ALTER DATABASE ARCHIVELOG statement 
B:Select ARCHIVELOG option in the database control and restart the database to apply the changes. 
C:Shut down and start the instance, and in the NOMOUNT state execute the ALTER DATABASE ARCHIVELOG statement. 
D:Shut down and start the instance, mount the database, then execute the ALTER DATABASE ARCHIVELOG statement. 
出自:Oracle认证