Which two statements are true about redefining the table?

Examine the following commands for redefining a table with Virtual Private Database (VPD) policies:

Which two statements are true about redefining the table?

A.
All the triggers for the table are disabled without changing any of the column names or column
types in the table.

B.
The primary key constraint on the EMPLOYEES table is disabled during redefinition.

C.
VPD policies are copied from the original table to the new table during online redefinition.

D.
You must copy the VPD policies manually from the original table to the new table during online
redefinition.

Explanation:
C (not D): CONS_VPD_AUTO
Used to indicate to copy VPD policies automatically
* DBMS_RLS.ADD_POLICY
/TheDBMS_RLSpackage contains the fine-grained access control administrative interface, which
is used to implementVirtual Private Database (VPD).DBMS_RLSis available with the Enterprise
Edition only.
Note:
* CONS_USE_PK and CONS_USE_ROWID are constants used as input to the “options_flag”
parameter in both the START_REDEF_TABLE Procedure and CAN_REDEF_TABLE Procedure.
CONS_USE_ROWID is used to indicate that the redefinition should be done using rowids while
CONS_USE_PK implies that the redefinition should be done using primary keys or pseudoprimary keys (which are unique keys with all component columns having NOT NULL constraints).
* DBMS_REDEFINITION.START_REDEF_TABLE
To achieve online redefinition, incrementally maintainable local materialized views are used.
These logs keep track of the changes to the master tables and are used by the materialized views

during refresh synchronization.
* START_REDEF_TABLE Procedure
Prior to calling this procedure, you must manually create an empty interim table (in the same
schema as the table to be redefined) with the desired attributes of the post-redefinition table, and
then call this procedure to initiate the redefinition.