A laptop boots up but the screen appears dark even during the power-on self test (POST) except when viewed from an angle. Adjusting the brightness and contrast has not resolved the problem. Which of the following is MOST likely the cause?

A.
The device driver for the VGA card has become corrupted.

B.
The backlight or inverter has failed.

C.
The advanced configuration and power interface (ACPI) power management settings have become corrupted.

D.
The CPU or VGA card has failed.