Which two statements are true?

Evaluate these statements:

CREATE TABLE purchase_orders (po_idNUMBER(4), po_dateTIMESTAMP, supplier_idNUM8ER(6),
po_totalNUMBER(8,2), CONSTRAINT order_pk PRIMARY KEY(po_id)) PARTITIONBYRANGE(po_date)
(PARTITIONQ1 VALUESLESSTHAN (TO_DATE(’01-apr-2007′,’dd-mon-yyyy’)), PARTITIONQ2VALUESLESSTHAN(TO_DATE(’01-jul-2007′,’dd-mon-yyyy’)), PARTITIONQ3VALUESLESSTHAN (TO~DATE(’01-oct-2007′,’dd-non-yyyy’)), PARTITIONQ4VALUESLESSTHAN (TO_DATE(‘Ol-jan-2008′,’dd-non-yyyy’ )));
CREATETABLEpurchase_order_items (po_idNUM3ER(4)NOTNULL,
product_idNUMBER(6)NOTNULL, unit_prlceNUMBER(8,2), quantity NUMBER(8),

CONSTRAINTpo_items_f k FOREIGNKEY(po_id)REFERENCESpurchase_orders(po_id) ) PARTITIONBYREFERENCE(po_items_fk);

Which two statements are true?

A.
Partitions of purchase_order_items are assigned unique names based on a sequence.

B.
The purchase_orders and purchase_order_items tables are created with four partition each.

C.
purchase_order_items table partitions exist in the same tablespaces as the purchase_orders table partitions.

D.
The purckase_order_:teks table inherits the partitioning key by duplicating the key columns from the parent table.

E.
Partition maintenance operations on the purchase_order_items table require disabling the foreign key constraint.