That would probably stop the humming noise

A customer’s laptop screen appears to show the correct information on the display, but the graphics and text appears blurry instead of crisp and clear. Which of these would be the most likely fix for this issue?

A) Upgrade the video drivers to the latest version

B) Use the Fn key to toggle between the internal and external display

C) Change display resolution to match the native values

D) Replace the laptop power supply

E) Try decaffeinated coffee tomorrow