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E8B14

In a pulse width-modulation system, why is the transmitter's peak power much greater than its average power?

Select	Answer
A	The signal duty cycle is less than 100%
B	The signal reaches peak amplitude only when the pulses are also amplitude modulated
C	The signal reaches peak amplitude only when voice modulated
D	The signal reaches peak amplitude only when voltage spikes are generated within the modulator

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