QS: For the code below: 1. Add comment (from your point of view) to show common modulation parameters e.g. FC, Fm, sampling frequency, modulating and modulated signal. Complete code to plot the output signal(s) (20 Marks) clear; clc; close all; fa -80; wa =2*pi*fa; KD =50; fb -1500; WC =2*pi*fc; f =30000; tiv =1/fs; t =0:tiv:(0.03 - tiv); A= exp (-KD*t). *sin(wa*t); y= A.*sin(wc*t)