Which statements are true about the SecureFile storage paradigm? (Choose two.) 

Answer options:

A. SecureFile storage can be used for internal and external LOBs
B. Automatic segment space management must be enabled for a tablespace to store SecureFile LOBs
C. SecureFile options enabled for a LOB column can be overriden on a per-LOB basis within the column
D. SecureFile is the default stroage paradigm for all LOBs that are stored in locally managed tablespaces if the DB_SECUREFILE parameter is set to ALWAYS

BC