Examine the command：  SQL> DBMS_STATS.SET_TABLE_PREFS（’SH’， ’CUSTOMERS’， ’PUBLISH’， ’false’）； Which statement describes the effect of the above command（）

• A、Automatic statistics collection is stopped for the CUSTOMERS table.
• B、Statistics for the CUSTOMERS table are locked and cannot be overwritten.
• C、Existing statistics for the CUSTOMERS table become unusable for the query optimizer.
• D、Subsequently， statistics gathered on the CUSTOMERS table are stored as pending statistics.