Which statement is true about the loss of a duplexed control file?

Your database is configured in ARCHIVELOG mode, and daily full database backups are taken. RMAN is configured to perform control file autobackups.
Which statement is true about the loss of a duplexed control file?
A. The database remains open but transactions are not permitted.
B. The database instance aborts, and media recovery is required after restoration of the control file to open the database.
C. The database instance remains open and the control file can be restored without shutting down the database
D. The database instance aborts and a control file restore operation does not require media recovery.

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