You executed the following command in the lsnrctl utility to stop the listener： lsnrctl> STOP L1  What is the effect of this command if L1 is the only listener configured for your database？（）

• A、It terminates all user sessions.
• B、It prevents users from logging in to the database remotely.
• C、It halts the server until all user transactions are completed.
• D、The server hangs， so users will receive an error asking them to login again.
• E、Connected users would get an error with the message "End of communication channel".