What distinguishes analog signals from digital signals?

Analog signals are characterized by their continuous nature, meaning they can take on an infinite number of values within a given range. This continuity allows analog signals to represent changes in amplitude, frequency, and other characteristics in a smooth and gradual manner, akin to real-world phenomena like sound waves or light intensity.

In contrast, digital signals are composed of discrete values, typically represented in binary form (0s and 1s). Each value corresponds to a specific state, rather than a continuous range. Thus, the primary distinguishing feature of analog signals is their ability to convey information as a continuous waveform, which is fundamentally different from the step-like nature of digital signals.

While the other options reference aspects of digital signals, they do not accurately capture the essential characteristic that sets analog signals apart.