【单选题】You have created a resource plan, DB_PLAN, using DBMS_RESOURCE_MANAGER.CREATE__PLAN and you want to impose a restriction on utilization of resources by the database users. Which step must be per...
A.
assign users to consumer groups
B.
set the resource plan for the instance
C.
configure a resource plan and specify plan directives
D.
configure a complex resource plan and specify plan directives