With the table Orders (OrderNum, OrderDate, (ItemNum, NumOrdered) ) where OrderNum is the primary key, how would you convert the table to first normal form?
A. by creating a second table with just the columns ItemNum and NumOrdered
B. by changing the primary key to OrderDate
C. by making ItemNum a foreign key
D. by making the primary key a combination of OrderNum and ItemNum
Answer: D
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