What should you ensure before the start of the operation?

Examine the structure of the sales table, which is stored in a locally managed tablespace with Automatic
Segment Space Management (ASSM) enabled.

You want to perform online segment shrink to reclaim fragmented free space below the high water mark.
What should you ensure before the start of the operation?

A.
Row movement is enabled.

B.
Referential integrity constraints for the table are disabled.

C.
No queries are running on this table.

D.
Extra disk space equivalent to the size of the segment is available in the tablespace.

E.
No pending transaction exists on the table.