Which three statements are true about Oracle Data Pump export and import operations?（）

A. You can detach from a data pump export job and reattach later.

B. ata pump uses parallel execution server processes to implement parallel import.

C. ata pump import requires the import file to be in a directory owned by the oracle owner.

D. The master table is the last object to be exported by the data pump.

E. You can detach from a data pump import job and reattach later.