You administer a Microsoft SQL Server 2012 database. The database is currently configured to log ship to a secondary server.
You are preparing to cut over to the secondary server by stopping log-shipping and bringing the secondary database online. You want to perform a tail-log backup.
You need to leave the primary database in a restoring state.
Which option of the BACKUP LOG command should you use?

A.
NO_TRUNCATE

B.
NORECOVERY

C.
STANDBY

D.
FORMAT