Refer to the given tables. Salesperson Salesperson Commission Year of Department Manager Number Name Name Percentage Hire Number Product Number SALESPERSON table Salesperson Number PRODUCT table Product Name QUANTITY table Product Number Unit Price Quantity Which feature of the tables makes it clear that they are in second normal form? O Each non-key attribute is fully functionally dependent on the key of that table. The tables are completely free of data redundancy. O Each non-key attribute functions completely independently of the key of that table. The tables are dependent on one another in descending order. Sm

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