Which two statements are true about the OPEN and FILEOPEN routines in the DBMS_LOB package?

Which two statements are true about the OPEN and FILEOPEN routines in the DBMS_LOB
package? (Choose two.)

A.
OPEN can be used to open only internal LOBs in the indicated mode.

B.
FILEOPEN can be used to open only external LOBs in the indicated mode.

C.
OPEN can be used to open internal and external LOBs in the indicated mode.

D.
FILEOPEN can be used to open internal and external LOBs in the indicated mode.