The IF is 455 kHz. If the radio receiver is tuned to 855 kHz, the local oscillator frequency is _______________?
A. 455 kHz
B. 1310 kHz
C. 1500 kHz
D. 1520 kHz
A. 455 kHz
B. 1310 kHz
C. 1500 kHz
D. 1520 kHz