Engine: Electricity

1. A Low frequencies below the cutoff frequency are attenuated and high frequencies above the cutoff- frequency are passed.
2. B Low frequencies below the cutoff frequency are passed and high frequencies above the cutoff frequency are passed.
3. C Low frequencies below the cutoff frequency are attenuated and high frequencies above the cutoff frequency are attenuated.
4. D Low frequencies below the cutoff frequency are passed and high frequencies above the cutoff-frequency are attenuated.

Tip: press A-D to answer