You're troubleshooting a malfunctioning notebook computer system. the user has indicated that the screen suddenly became dark and difficult to read while he was downloading a large file through his wireless network card while the system was plugged in at his desk. you've checked the system and determined that the backlight has stopped working. which of the following could be the cause? (select two)
a. the inverter in the lcd assembly has malfunctioned.
b. the wireless network card is emitting radio signals that interfere with the backlight; causing it to stop functioning.
c. the extended download placed high demands on the system dc power; causing the bios to shut off the backlight.
d. the ac adapter (brick) is no longer converting ac power to dc power for the backlight.
e. the cold cathode fluorescent lamp has burned out and needs to be replaced.