In your database, there are tablespaces that were read-only when the last backup was taken. These tablespaces have not been made read/write since then. You want to perform an incomplete recovery on the database by using a backup control file. What precaution must you take for the read-only tablespaces before performing an incomplete recovery? 

Answer options:

A. All the read-only tablespaces should be taken offline.
B. All the read-only tablespaces should be restored separately.
C. All the read-only tablespaces should be renamed to have the MISSING nnnn format.
D. All the read-only tablespaces should be made online with logging disabled.

B