question_answer

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.

Answer:

                (c), AM is used for broadcasting because its use avoids receiver complexity. Only a diode and a capacitor are sufficient to separate the audio signal from the AM wave.