In the figure below, the primary key for "Order Line" is which type of key? CUSTOMER Cantomer10 Customer_Name Addrew City State zp ORDER Order_ID Order_Date Customer_JD ORDER LINE Order ID Order 10 Product ID Product jo Quantity Quantity PRODUCT Producto Product_Description Product. Finish Standard Price On_Hand Not in Figure 3-22 for simplicity. O 1) Composite O 2) Standard 03) Foreign O4) Grouped