Which of the following choices best describes the term "Demodulation"?

The term "Demodulation" refers specifically to the process of converting a modulated signal back to its original form. This is a crucial concept in communication systems where data is transmitted over various media. Modulation involves altering a carrier signal in order to encode information; this process changes the characteristics of the carrier signal to allow it to carry the data effectively over distances. At the receiving end, demodulation is performed to extract the original information by reversing the modulation process.

Understanding demodulation is essential for various technologies, such as radio, television, and data communications, where signals may be modulated to optimize transmission and reception. It ensures that the data can be accurately recovered for further processing or interpretation.