A DB2 subsystem is being migrated/converted from DB2 Version 8 to DB2 9. The subsystem
currently has these characteristics: new DB2 9 functions are not available; no DB2 9 objects can
exist; the subsystem cannot fall-back to CM (conversion mode); the subsystem cannot fall-back to
Version 8; the subsystem cannot coexist with any Version 8 systems in a data sharing group.
Which mode describes the DB2 subsystem?

A.
CM* (conversion mode*)

B.
ENFM (enabling-new-function mode)

C.
ENFM* (enabling-new-function mode*)

D.
NFM (new-function mode)