If each product in the inventory is unique, then the attribute "quantity on hand" will not be independently stored because O It can always be calculated from other attributes. O None of the above. O This information is meaningless. O Quantity on hand is always one. Buyers for Payton Corporation may make purchases from any available vendor. If a vendor may combine orders received from different buyers at Payton Corporation into a single shipment to Payton, the participation cardinalities for the relationship between Purchase and Buyer for Payton Corporation must be O (1.N) Purchase -(0,1) Buyer O (1.1) Purchase - (ON) Buyer O (1.1) Purchase - (0,1) Buyer O (1.N) Purchase - (0.N) Buyer