Which two storage-tiering actions might be automated when using information Lifecycle Management (ILM) to automate data movement?

In your Database, the TBS PERCENT USED parameter is set to 60 and the TBS PERCENT
FREE parameter is set to 20. Which two storage-tiering actions might be automated when
using information Lifecycle Management (ILM) to automate data movement?

A.
The movement of all segments to a target tablespace with a higher degree of
compression, on a different storage tier, when the source tablespace exceeds TBS
PERCENT USED

B.
Setting the target tablespace to read-only

C.
The movement of some segments to a target tablespace with a higher degree of
compression, on a different storage tier, when the source tablespace exceeds TBS
PERCENT USED

D.
Setting the target tablespace offline

E.
The movement of some blocks to a target tablespace with a lower degree of
compression, on a different storage tier, when the source tablespace exceeds TBS
PERCENT USED

Explanation: