A.To the Itemlnventory class, add the following attribute:
B.To all methods of the Itemlnventory class, add the following attribute:
C.Modify the Transaction attribute of the Itemlnventory class to be the following attribute:
D.Modify the Transaction attribute of the Itemlnventory class to be the following attribute:〈Transaction(TransactionOption.Required, __IsolationLevel:» TransactionlsolationLevel.ReadOncoromitted)>
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