You are the administrator of Company's network. You wish to connect your Windows 2000 Professional computer to a new TCP/IP based Plug and Play compliant print device. The print device is included on the current Hardware Compatibility List (HCL) When you attempt to create a new TCP/IP printer port, you receive the following message:   "Specified Port cannot be added. The port already exists."  You want to create a new TCP/IP printer port.  What should you do? （）

• A、Change the LPT port setting to enable legacy Plug and Play detection on your computer.
• B、Delete the existing printer port.
• C、Change the LPT port setting to bidirectional in the BIOS on your computer.
• D、Obtain and install the WDM-compliant device drivers and printing software for the printer.