part A's value is given in the plot. X 0.00044275 Y 8.9407 X 0.0005725 Y 20.8115 X 0.000447 Y-8.7214 X 0.000577 Y-19.5974 From Part- A, calculate the modulation index, carrier power and sideband power, and efficiency of the modulated signal. Draw the power spectral density (PSD) of the DSB WC modulated signal (You don't need to use plotting tools for this, hand drawn figure is fine) Compare the theoretically calculated modulation index with the modulation index found from experiment Why envelop detection is not implementable with DSB-SC? Explain Why the DC value should be higher than the amplitude of message signal? What happens if it lower? Calculate the power of carrier, sideband power, and efficiency if the DC offset value is 10V and message signal amplitude is 4V.