Within the structure of the relay model Microprocessor or Digital Relays that are used in modern times. Need to have a Multiplexer (MUX) to
A. Use the noise filter before entering the ADC device.
B. Use to select and sort the signal before entering the ADC device.
C. Use to expand the signal size before entering the ADC device.
D. Use as a clock signal builder within the relay.
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Answer: B
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