the diagram shows a carrier wave before and after modulation. before modulation after modulation the diagram…

the diagram shows a carrier wave before and after modulation. before modulation after modulation the diagram best represents which type of modulation? fm phase am pulse
Answer
Brief Explanations:
AM (Amplitude - Modulation) changes the amplitude of the carrier wave. In the given diagrams, the amplitude of the carrier wave is varying after modulation while the frequency and phase remain relatively constant. FM (Frequency - Modulation) changes the frequency, phase - modulation changes the phase, and pulse - modulation is a different concept involving pulses.
Answer:
C. AM