The Q of a tuned amplifier is 50. If the resonant frequency for the amplifier is 1000kHZ, then bandwidth is __________________?
		A.	10kHz
B.	40 kHz
C.	30 kHz
D.	20 kHz
		A.	10kHz
B.	40 kHz
C.	30 kHz
D.	20 kHz