View the Exhibit and examine the output.  Which two statements are true regarding the LISTENER2 listener（）

• A、The ORCL instance is registered dynamically with the listener.
• B、The ORCL instance is registered statically in the listener.ora file.
• C、The number of current client connections handled by the service handler is two.
• D、The total number of client connections handled so far by the service handler is two.