You have a computer running Windows 2000 Professional. You have purchased a new USB scanner. You attached it to the USB port. When you go to device manager to see the status of the USB port， you did not find any USB controller there. What should you do to resolve this problem？（）

• A、Update the scanner drivers using certified drivers
• B、Enable the USB port in the computers BIOS
• C、Enable the USB hub controller in device manager.
• D、Reinstall the USB device driver and disable the USB error detection