Final answer:
The correct answer is d. Reinstall the video driver. This is not a valid support approach because if there is nothing showing on the display, it is unlikely that reinstalling the video driver will fix the issue.
Step-by-step explanation:
The correct answer is d. Reinstall the video driver. This is not a valid support approach because if there is nothing showing on the display, it is unlikely that reinstalling the video driver will fix the issue. The other options, a. Check whether the monitor is connected to the computer, b. Check whether the USB is plugged into the monitor, and c. Check whether the computer is plugged in, are all valid support approaches as they involve checking the basic connections and power supply.