Oracle Database 12c Advance Adminstration1z0-063 Test 1

You must unload data from the orders, order_items, and products database tables to four files using the External Tables.
CREATE TABLE orders_ext
(order_id, order_date, product_id, product_name,quantity)
ORGANIZATION EXTERNAL
(
TYPE ORACLE_DATAPUMP
DEFAULT DIRECTORY ext.dir
LOCATION (‘ordersl.dmp','orders2.dmp’,’orders3.dmp’,’lorders4.dmp')
)
PARALLEL
AS
SELECT o.order_id,o.order_date,p.product_id,p.product_name,i.quantity
FROM orders o,productsp,order_items
WHERE o.orderid = i.order_id and i.product_id = p.product_id;
You execute the command shown in the Exhibit, but only two files are created. Which parameter must be changed so that four files are created?