单选题Which is the source used by Automatic SQL Tuning that runs as part of the AUTOTASK framework? （）A SQL statements that are part of the AWR baseline only B SQL statements based on the AWR top SQL identificationC SQL statements that are part of the availa

SQL statements that are part of the AWR baseline only 

SQL statements based on the AWR top SQL identification

SQL statements that are part of the available SQL Tuning Set (STS) only 

SQL statements that are available in the cursor cache and executed by a user other than SYS