You work as a database administrator for Supportcenter.cn. Your database is opened inNOARCHIVEKLOG mode. You decide to place the database in ARCHIVELOG mode. How would you do this？（）

A. xecute 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.