$($b$)$ Ram and Shyam both are fond of $93\mathrm{.}5FM$ music radio channel. Ram is$,$ having a stereophonic receiver set to listen to music, whereas Shyam is having a mono receiver set. Explain with Block diagrams, how the radio broadcaster will modulate the signal and how it is demodulated at the receiver's end, so that both Ram and Shyam can enjoy the music with their individual set.