You are required to remove the default EXTPROC entry from the default listener configuration to create a listener that will listen specifically for EXTPROC calls. Which two methods can you use to remove the default EXTPROC entry from the default listener configuration？ （）

• A、 the RMAN utility
• B、 the import/export utility
• C、 the Oracle Enterprise Manager
• D、 the change tracking feature
• E、 the Net Manager utility