which three are valid settings for the Initial Value property of the Shipping_Date item?

In an Order Entry form, the Order_Items block has a text item called Shipping_Date, which is of the Date data type The Lowest Allowed Value and the Highest Allowed Value properties are not defined for this item. Assuming that all of the following are defined, which three are valid settings for the Initial Value property of the Shipping_Date item? (Choose three.)

A.
$$DBDATE$$

B.
:Orders.Order_date + 3

C.
SYSDATE

D.
:GLOBAL.SHIP_DATE

E.
:PARAMETER:SHIP_DATE

F.
ORDER_ITEMS_SEQ