[单选]
You need to create a table named ORDERS that contain four columns:
1. an ORDER_ID column of number data type
2. aCUSTOMER_ID column of number data type
3. an ORDER_STATUS column that contains a character data type
4. aDATE_ORDERED column to contain the date the order was placed.
When a row is inserted into the table, if no value is provided when the order was placed, today's date should be used instead.
Which statement accomplishes this? （）

A . CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE = SYSDATE);
B . CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE DEFAULT SYSDATE);
C . CREATE OR REPLACE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE DEFAULT SYSDATE);
D . CREATE OR REPLACE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE = SYSDATE);
E . CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE = SYSDATE);
F . CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE DEFAULT SYSDATE)

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You need to create a table named ORDERS that contain four columns:
1. an ORDER_ID column of number data type
2. aCUSTOMER_ID column of number data type
3. an ORDER_STATUS column that contains a character data type
4. aDATE_ORDERED column to contain the date the order was placed.
When a row is inserted into the table, if no value is provided when the order was placed, today's date should be used instead.
Which statement accomplishes this? （）

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