Which two statements are true about SecureFile LOB options?

Which two statements are true about SecureFile LOB options? (Choose two.)

A.
The DECRYPT option can be used to remove the encryption only if the LOB column is empty.

B.
The KEEP_DUPLICATES option removes the deduplication effect only on new data in a LOB
column.

C.
The KEEP_DUPLICATES option removes the deduplication effect on existing and new data in
a LOB column.

D.
The DECRYPT option can be used to remove the encryption from LOB columns that are
empty or contain data.