Two recordings were made of a musical performance: one analog, one
digital. Copies were then made of each recording. The table below compares
the copies made using analog and digital signals.
Original sound
recording
Copy of sound
recording
Analog
Digital
What are two reasons the digital signal is a more reliable way to copy sound
recordings than the analog signal?
A. The digital signal uses a limited number of values.
B. The digital signal is more complicated.
C. The digital signal includes a full range of values.
D. The digital signal is less affected by noise.