A. It is not possible to shrink either indexes or Index Organized Tables (IOTs)

B. It always eliminates all migrated rows if any exist in the table

C. To shrink a table it must have a PRIMARY KEY constraint

D. To shrink a table it must have a UNIQUE KEY constraint

E. To shrink a table it must have row movement enabled

F. It must be in a tablespace that uses Automatic Segment Space Management (ASSM)