Question: In a digital communication system, what does the Quantizer block do ? a . Translates the frequency of the signal for transmission b . Limits

In a digital communication system, what does the Quantizer block do?
a.
Translates the frequency of the signal for transmission
b.
Limits the bandwidth of the transmitted signal
c.
Converts digital data into analog signals
d.
Maps the amplitude of the received samples into a discrete set of amplitudes

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