9. You have created a profile with LIMIT SESSIONS_PER_USER 1 and granted
it to a user, but you find that they are still able to log on several times
concurrently. Why could this be? (Choose the best answer.)
A. The user has been granted CREATE SESSION more than once.
B. The user has been granted the DBA role.
C. The RESOURCE_LIMIT parameter has not been set.
D. The RESOURCE_MANAGER_PLAN parameter has not been set.
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