Your database is configured in shared server mode. However， your senior DBA asks you to modify the value ofthe PRIVATE_SGA limit in the profile of the users.  What could be the reason for this（）

• A、To limit the User Global Area （UGA） memory allocated to a session from the SGA
• B、To limit the amount of memory to be used for the dispatcher queue of a session in SGA
• C、To limit the amount of memory to be used for the request pool in System Global Area （SGA）
• D、To control the amount of memory allocated in SGA for the local variables for each shared server process