Which three statements are true about views in an Oracle database? (Choose three.)

• A.Data Manipulation Language (DML) can always be used on views
• B.The WITH CHECK clause prevents certain rows from being updated or inserted
• C.Deleting one or more rows using a view whose defining query contains a GROUP BY clause will cause an error
• D.The WITH CHECK clause prevents certain rows from being displayed when querying the view
• E.Tables in the defining query of a view must always exist in order to create the view
• F.Views can be updated without the need to re-grant privileges on the view
• G.Inserting one or more rows using a view whose defining query contains a GROUP BY clause will cause an error

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