which carries information by copying an original sound?\no analog signal\no digital signal\no volume\no…

which carries information by copying an original sound?\no analog signal\no digital signal\no volume\no frequency
Answer
Brief Explanations:
An analog signal represents information by continuously varying its amplitude or other characteristics to mimic the original sound. Digital signals represent information as discrete values. Volume is a measure of loudness and frequency is the number of cycles per unit time. Only analog signals copy the original sound for information - carrying.
Answer:
A. analog signal