(Refer to figure 10-1.) Which column or columns in each table should be defined as the primary key?
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A) Orders: OrderID; OrderLineItems: OrderID and OrderSequence; Products: ProductID
B) Orders: OrderID; OrderLineItems: OrderID, OrderSequence, and ProductID; Products: ProductID and ProductName
C) Orders: OrderID and OrderDate; OrderLineItems: OrderID and OrderSequence; Products: ProductID
D) Orders: OrderID; OrderLineItems: OrderID; Products: ProductID