Answer:
A transducer like a microphone captures sound, converts it to electrical signals, and then sends it to an Analog-to-Digital converter to make it digital.
Explanation:
A device like a microphone captures sound, which typically occurs in an analog form. This sound is converted into an electrical signal by a transducer. Once the sound has been converted into an electrical signal, it needs to further be converted into a digital format for processing by modern electronic equipment. This analog to digital conversion is done by an Analog-to-Digital converter. The correct answer is hence A) Transducer; Analog-to-Digital.
