\( \mathrm{AM} \) is used for broadcasting because (a) It is more noise immune than other modula...

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\( \mathrm{AM} \) is used for broadcasting because
(a) It is more noise immune than other modulation systems.
(b) It requires less transmitting power compared with other systems.
(c) Its use avoids receiver complexity.
(d) No other modulation system can provide the necessary bandwidth faithful transmission.
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