You are using Resource Manager to manage system resources. While creating a new database user， you observe that the user is a member of DEFAULT_CONSUMER_GROUP by default. What would be the implications of this？（）

A.The Resource Manager plan does not affect the user.

B.There must be a plan directive in any of the plans of the group to control the resources.

C.The members of the group DEFAULT_CONSUMER_GROUP always have resource restrictions.

D.The members of DEFAULT_CONSUMER_GROUP are restrained from accessing the system tables.

E.The members of this group can change their group without the database administrator’s intervention.