How are Java EE 5 security permissions assigned to actual users in WebSphere Application
Server?

A.
By mapping application roles to users or groups within the WebSphere user registry.

B.
By generating the users in application.xml which will be created in the registry during deploy
time.

C.
By the WebSphere Application Server itself, automatically, by introspecting the classes in the
application.

D.
By creating the users in the application itself which will be created in the registry during deploy
time.