单选题

You are performing flashback of the ORDERS table in the Scott’s schema because some important data is deleted in the table by mistake. The SCN number was 771513 at the time of deletion. You issued the following statement to perform Flashback Table： SQL> FLASHBACK TABLE ORDERS TO SCN 771513； What is the prerequisite to perform Flashback Table？（）

A You must configure OMF in your database.

B You must enable block change tracking feature in your database.

C You must enable ROW MOVEMENT feature on the ORDERS table.

D You must use the Flashback Version Query before using the Flashback Table feature.

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