The diagram shows the results of copying waves in both analog and digital forms. What conclusion about the reliability of analog and digital waves is supported by the data?
A. Digital waves are less reliable because they tend to have more errors when copied.
B. Analog waves are less reliable because they tend to have more errors when copied.
C. Analog waves are more reliable because they tend to have fewer errors when copied.
D. Digital waves are more reliable because they tend to have more errors when copied.