Pressing a key on telephone set generates two frequencies. The basis f – McqOptions

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1.	Pressing a key on telephone set generates two frequencies. The basis for selection of these frequencies is
A.	the harmonics of one frequency should not be mistaken for the other frequency
B.	the audio input to the handset transmitter should not be mistaken for a key pressing
C.	both (a) and (b)
D.	neither (a) nor (b)
Answer» D. neither (a) nor (b)

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