Join the growing community of curious minds on IDNLearn.com. Discover prompt and accurate answers from our experts, ensuring you get the information you need quickly.

In a digital communication system, Pulse Width Modulation (PWM) is used to represent:

a) Analog data by varying the pulse amplitude
b) Analog data by varying the pulse width
c) Digital data by varying the pulse amplitude
d) Digital data by varying the pulse width?