What are the differences between the MEASURE DISCOPEN and DISKFILE entities? Select
TWO.

A.
DISCOPEN entity records data only for closed files.

B.
DISKFILE and DISCOPEN entities record the same data.

C.
DISKFILE entity records data for logical and physical file activity.

D.
DISKFILE entity records I/O operations performed by all openers for a specific disk file.

E.
DISCOPEN entity records I/O operations performed by individual opener for a specific disk file.