Analog vs Digital Signals Practice Test

A school wants to archive a recording of the choir so it can be copied and shared for many years. Option 1 is an analog cassette tape (continuous signal). Option 2 is a digital audio file (discrete samples). Which reason best explains why the digital file is usually preferred for long-term sharing?

A teacher explains that analog signals (like a sound wave in air or the groove on a vinyl record) are continuous, while digital signals (like a CD or MP3) use discrete samples. Which choice correctly compares analog and digital signals?