A.Creates an additional copy of the database online redo log files. 
B.Stores the primary key column values of each row involved in a DML operation in the online redo log files. 
C.Stores the primary key column values of each row involved in a DML operation in the supplemental log files. 
D.Stores the old and new primary key column values of each row involved in a DML operation only when the primary key is modified in the online redo log files.

A.Include an SPFILE parameter in each instance-specified initialization file.
B.Create an SPFILE copy on each client from which the instance will be started.
C.Store the SPFILE in a raw partition with a vendor-specifies location and name.
D.Use a single client to start the instances and create the SPFILE on this client.