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Which two statements are true regarding views? (Choose two.)

A simple view in which column aliases have been used cannot be updated.

A subquery used in a complex view definition cannot contain group functions or joins.

Rows cannot be deleted through a view if the view definition contains the DISTINCT keyword.

Rows added through a view are deleted from the table automatically when the view is dropped.

The OR REPLACE option is used to change the definition of an existing view without dropping and re- creating it.

The WITH CHECK OPTION constraint can be used in a view definition to restrict the columns displayed through the view.

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