Answer:
Encoding information into a wave is a process of adding information to a wave in such a way that it can be transmitted or stored for later use. There are different ways to do this, but one common way is by varying the wave's properties such as frequency, amplitude, or phase. By changing these properties, information can be added or modulated onto the wave, allowing it to carry the desired information. In the case of speech, for example, the sound wave is modulated by the speaker's voice, creating variations in the wave that corresponds to the words and sounds being spoken. This modulated wave can then be transmitted through the air or recorded for later playback, allowing the information to be conveyed to others.
C: The frequency of a wave can be varied along with the information.