You issue the following code：    EXEC DBMS_RESOURCE_MANAGER_PRIVS.GRANT_SWITCH_CONSUMER_GROUP        （’SCOTT’ ’GRP1’， TRUE）；   What will be the result of executing the above code？（）  

• A、 The switch privilege will be granted to the user， Scott， for changing the consumer group to GRP1.
• B、 The switch privilege will be granted to the user， Scott， for changing the consumer group from GRP1 to any other group.
• C、 The code will not execute successfully because there is no GRANT_SWITCH_CONSUMER_GROUP procedure in the DBMS_RESOURCE_MANAGER_PRIVS package.
• D、The code will execute successfully but no privilege will be granted to the user， Scott.